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Doctor insights on: Burning Red Itchy Rash On Back Of Knees

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Off/on for past year+ I've been fighting an itchy rash on my butt (btwn chks). It comes/go. Recently I have had other symp-hair loss, rash on back of neck, behind knees. I have hypo thyroid. What cause?

Off/on for past year+ I've been fighting an itchy rash on my butt (btwn chks). It comes/go. Recently I have had other symp-hair loss, rash on back of neck, behind knees. I have hypo thyroid. What cause?

Skin: Hypothyroidis even uncorrected would unlikely to cause the skin lesions you described. I think at this time you need to have a work up to rule out other autoimmune diseases. Also, seeing a dermatologist would be helpful. ...Read more

Dr. John Chiu
2,663 Doctors shared insights

Rash (Definition)

A skin rash is a symptom in which a person has changes on part or all of his skin, such as color changes, bumps, blisters, oozing, peeling, ...Read more


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Hi, I woke up with an itchy red rash on back of knee. Looks inflamed w/ brown dots & little scabs on the follicles. Used cortisone 3 days, not better?

Hi, I woke up with an itchy red rash on back of knee. Looks inflamed w/ brown dots & little scabs on the follicles. Used cortisone 3 days, not better?

See Specialist!: It could be a general contact dermatitis. If after 3 days of using an anti-inflammatory cream with no relief, I recommend getting it looked at in person. If you have any symptoms such as increased redness, swelling, fever or nausea, make sure you seek medical treatment immediately! Get better soon! ...Read more

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I have a bright red (and itchy!) rash on the back of both my legs, between my butt and knee. It looks like small bug bite like bumps. Not spreading.?

I have a bright red (and itchy!) rash on the back of both my legs, between my butt and knee. It looks like small bug bite like bumps. Not spreading.?

Many causes: Rashes are challenging even when the doctor can see them, so even harder in this forum. Small red bumps on both legs make me think of reactions to clothes, or something in contact with that area on both sides. Bites can do it. It could be heat rash, a reaction of the skin to warmth and occlusion from pressure. Some drug reactions can do that as can conditions like eczema and psoriasis. ...Read more

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Many bright red and itchy rash on the back of both my legs, between butt and knee. It looks like small bug bite like bumps smeared in a line. Nospread?

Many bright red and itchy rash on the back of both my legs, between butt and knee. It looks like small bug bite like bumps smeared in a line. Nospread?

Many causes: Rashes are challenging even when the doctor can see them, so even harder in this forum. Small red bumps on both legs make me think of reactions to clothes, or something in contact with that area on both sides. Bites can do it. It could be heat rash, a reaction of the skin to warmth and occlusion from pressure. Some drug reactions can do that as can conditions like eczema and psoriasis. ...Read more

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Hi doc, had unprotected oral and got pain on big toe on my left leg and itchy rash on my elbows and non itchy red rash on chest. Then got ulcer on lower lip and skin on mouth roof started peeling off. Burning tongue sensation and lumps on mouth roof. Imme

Hi doc, had unprotected oral and got pain on big toe on my left leg and itchy rash on my elbows and non itchy red rash on chest. Then got ulcer on lower lip and skin on mouth roof started peeling off. Burning tongue sensation and lumps on mouth roof. Imme

Unrelated symptoms: And sketchy picture, you need to be examined, tell your doctor what you are anxious about, you might need an STD testing, trust your doctor, your information is confidential, good luck ...Read more

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I'm concerned because I have swollen hands and knees and red itchy rash!?

I'm concerned because I have swollen hands and knees and red itchy rash!?

Arthritis rash can b: Inflammatory, and psoriais can be associated with a condition know as dactylitis and can affect the knees as psoriatic arthritis

. Other causes are infection, gout, lyme disease, . ...Read more

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I have seen my Doctor several times over the last 2 years about this red, itchy rash with tiny fluid filled bumps on my knees.

I have seen my Doctor several times over the last 2 years about this red, itchy rash with tiny fluid filled bumps on my knees.

Itchy rash: Rashes are notoriously difficult to solve without seeing them. Hives are like raised patches and can be described as water-filled. Several treatment modalities would help you in that case. Contact allergy may be more likely and an Allergist can help identify triggers and treat that as well. Step 1 is to try not to rub/itch it, which makes the itch worse in either case. ...Read more

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Sudden appearance of red itchy rash behind my knee, swelling and spreading. I scratched my eyelid and got four bumps there too so its spreading?

Sudden appearance of red itchy rash behind my knee, swelling and spreading. I scratched my eyelid and got four bumps there too so its spreading?

Allergies: Patients with allergies can develop red and itchy skin around the eyes and on the eyelids from allergies. Behind the knees and on the inside part of the elbow too. This skin condition is called allergic dermatitis or allergic eczema. You can use a hypoallergenic cream/lotion: cetaphil or lubriderm and consider contacting your medical doctor about taking allergy pills-such as Claritin (loratadine) or allegra. ...Read more

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After I drink several glasses of red wine, my right calf swells up, my leg aches, and I get an itchy rash behind my knee. What's going on?

After I drink several glasses of red wine, my right calf swells up, my leg aches, and I get an itchy rash behind my knee. What's going on?

Reaction to sulfites: Is possible. Sometimes, more expensive red wines can contain sulfites. I don't know why your left calf will be spared though. Stick with cheap white wine. ...Read more

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My sister has a red, itchy rash developing on her arms and legs. It started on her feet and has now spread to hands, knees, elbows.?

My sister has a red, itchy rash developing on her arms and legs. It started on her feet and has now spread to hands, knees, elbows.?

Cannot say: Your sister could have eczema and allergic eruption or psoriasis.She needs to see a dermatologist for a diagnosis and treatment plan. Sometimes a skin biopsy is necessary. ...Read more

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For a few weeks now, I've had itchy areas on my arms and legs. They start out as tiny little spots. Then I started scratching and they become red, itchy rashes. I have 2 places on my left arm, 1 on my right and behind both of my legs (knee area). What

For a few weeks now, I've had itchy areas on my arms and legs. They start out as tiny little spots. Then I started scratching and they become red, itchy rashes. I have 2 places on my left arm, 1 on my right and behind both of my legs (knee area). What

Dry skin?: First try applying a moisturizer all over your body within 3 minutes after bathing and see if this helps. For the rash, topical hydrocortisone for a few days may be helpful. However if this is a persistent or worsening problem, I would recommend a dermatology consult. ...Read more

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My feet are itchy and burning after itching....and knees arms hands feet itches in night more...help me. I got red rashes after 2 days of itching. Tq?

My feet are itchy and burning after itching....and knees arms hands feet itches in night more...help me. I got red rashes after 2 days of itching. Tq?

Clean, don't scratch: Clean the bedding well. Gently clean your body well too and wipe w/ diluted vinegar or witch hazel, etc. Use a hypoallergic lotion too. Take Benadryl (diphenhydramine) as directed. If you still suffer, see a Dr. You might need a lb test and/or a Rx anti-inflammatory. Try hard to not scratch! Avoid infection. ...Read more

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Itchy rash on back and chest --what is it \ why am I getting it?

Many possible causes: Best to get evaluated to get accurate diagnosis but possibilities include folliculitis, grover's disease (wax/wanes often worse in hot weather), drug reaction. ...Read more

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On vacation in Sri Lanka and have developed a itchy rash on back and shoulders, I'm using sun block and after sun, I have been in hotel pool and sea?

On vacation in Sri Lanka and have developed a itchy rash on back and shoulders, I'm using sun block and after sun, I have been in hotel pool and sea?

Hard to say: If the rash occurs only on sun exposed area, one needs to consider photosensitizing from lotion applied or drug taken. Some ingredients in sunscreen can also induced photoallergic reaction. Try changing sunscreen PABA-free or one with a different active ingredient. Topical cortisone may help ...Read more

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I have itchy rash on back, what treatment?

I have itchy rash on back, what treatment?

Hard to tell: Without examination, however you can have a shower, apply OTC hydrocortisone 1℅, like anti-itch cream, and take an OTC antihistamine, unless contraindicated, if no improvement or getting worse, see your doctor, good luck ...Read more

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Itchy rash on back of neck and in hairline also on lower back?

Itchy rash on back of neck and in hairline also on lower back?

Itchy back: You might be allergic to your shampoo or another hair care product. Without a medical exam it would be difficult to say. Consider using only a non sensitizing shampoo such as free and clear and avoid other treatments. If that doesn't work seek out a board certified allergist or dermatologist. ...Read more

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Went to park. Burrs thrown at me. Mildly itchy rash on back and shoulders, use allegra (fexofenadine) and calamine lotion, not helping. Respond asap?

Went to park. Burrs thrown at me. Mildly itchy rash on back and shoulders, use allegra (fexofenadine) and calamine lotion, not helping. Respond asap?

Best to ignore: The more you mess with it the more it will mess with you. Ignore it. It should get better no matter what you do. If you have to do something put otc cortisone cream on it. ...Read more

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Took 4wkly doses of Ivermectin 6wks ago for 5mth long?? rash. Cleand daily. No 1 else affected. Gettn itchy rash on back. Can scabies return after 6 wks?

Took 4wkly doses of Ivermectin 6wks ago for 5mth long?? rash. Cleand daily. No 1 else affected. Gettn itchy rash on back. Can scabies return after 6 wks?

It can, but: Unlikely in your case, you are still entitled to get other types of skin problems than scabies!! Can't tell what do you exactly have, if you really suffer see your doctor again, good luck ...Read more

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Had Catheter Ablation 1wk ago. Had 3days in the hospital & now have an itchy rash on back & now getting on stomach & chest. What can I do?

Had Catheter Ablation 1wk ago. Had 3days in the hospital & now have an itchy rash on back & now getting on stomach & chest. What can I do?

Be checked: It sounds like an allergic reaction to something, most likely something you came in contact with in the hospital. Have your doctor look at the rash and give treatment advice. ...Read more

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What might cause dry itchy dark patch, itchy breast, itchy rash on back waist area, sudden weight gain, feeling full, daily headaches. And more.

What might cause dry itchy dark patch, itchy breast, itchy rash on back waist area, sudden weight gain, feeling full, daily headaches. And more.

See a physician ASAP: I realize that you are suffering, but you are not giving me enough details to give you specific advice. Itchy rashes can be associated with some weight gain if there is some swelling. However, daily headache, feeling lightheaded are not part of it. Also, collapse and pain, and more are too broad terms that need to be evaluated in more detail. Start by seeing your primary care physician asap! ...Read more

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I have this red burning, itchy rash on my neck that hasn't gone away in a few months. What could be causing this?

I have this red burning, itchy rash on my neck that hasn't gone away in a few months. What could be causing this?

Rashes: Rashes can not be diagnosed over the computer, so it is truly best to have the area looked at by a health care provider to be properly diagnosed, . best wishes, ...Read more

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Hello, I've got a spotty, red, burning and itchy rash around my vagina opening and wondering if it was thrush or not?

Hello, I've got a spotty, red, burning and itchy rash around my vagina opening and wondering if it was thrush or not?

Get tested: The only way to know is to get tested. Many different things can cause these symptoms. It would not hurt to try using an over the counter yeast cream but it would delay and possibly make the diagnosis more difficult. ...Read more

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I am experiencing soreness or burning inside of mouth and itchy rash on my leg, I believe I may have gotten poison ivy on my leg and scratched it before noticing what it was and maybe I got it on my mouth. Anything I can do to help relieve my mouth?

I am experiencing soreness or burning inside of mouth and itchy rash on my leg, I believe I may have gotten poison ivy on my leg and scratched it before noticing what it was and maybe I got it on my mouth. Anything I can do to help relieve my mouth?

Drug reaction?: Only thing I can think of affecting both the mouth and the skin would be a drug reaction. Was there a new drug introduced within 2 weeks prior to onset? I suspect that they are unrelated since poison ivy does not cause mouth problem unless you are chewing it. For sore mouth, try switching to Biotene toothpaste. For the skin, topical hydrocortisone. See allergist if not better. ...Read more

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Red itchy rash on leg what could it be? Photo in health files on my profile.

We cannot see: The photo in your file. This is HealthTap BASIC - not the one of the treatment/ consult sites on HealthTap. ...Read more

Dr. Cornelia Franz
1,059 Doctors shared insights

Rash (Definition)

A rash is a change to skin condition which can affect color, appearance, or texture. It may or may not ...Read more


Dr. Doanh Nguyen, md, faaaai
647 Doctors shared insights

Itchy Rash (Definition)

Most itchy rashes are called eczema or dermatitis. Both are due to ...Read more