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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

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Dr. M. Christine Lee
Board Certified, Dermatology
22 years in practice
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Dr. Cornelia Franz
1,062 doctors shared insights

Rash (Definition)

Most bumps and blotches on a newborn baby are harmless and clear up by themselves. By far the most common skin problem in infants is diaper rash. Diaper rash is an irritation of the skin caused by dampness, urine, or feces. Most babies who wear diapers will have some type of diaper rash. However, there are other skin disorders that can cause rashes. These are usually not serious unless ...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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Dr. M. Christine Lee
Board Certified, Dermatology
22 years in practice
2M people helped
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Treating Jock Itch (Checklist)

Treat affected areas with a topical antifungal cream
Once
See a dermatologist for resistant or widespread cases
Once
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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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Board Certified, Dermatology
22 years in practice
2M people helped
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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. Whats 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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Treating Dry Skin (Checklist)

Use moisturizers regularly
Once
Use mild soap when washing the skin
Once
Limit overexposure to detergents or soaps
Once
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Itchy rash on back and chest --what is it \ why am I getting it?

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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Dr. John Chiu
2,232 doctors shared insights

Skin Rash (Definition)

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


Dr. Doanh Nguyen
521 doctors shared insights

Itchy Rash (Definition)

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


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Dr. M. Christine Lee
Board Certified, Dermatology
22 years in practice
2M people helped
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