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Doctor insights on: Blister Like Rash On Leg

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Have some very big knot like blister/red rashes behind both ears, on chest, back and a few on legs. They hurt to touch. What could this be?

Have some very big knot like blister/red rashes behind both ears, on chest, back and a few on legs. They hurt to touch. What could this be?

Need eval: With skin lesions it is always best to see and feel them and occasionally biopsy then. With what you are describing, recommend you see a doctor for evaluation. Sorry this was not more helpful. Best of luck. ...Read more

Dr. John Chiu
2,673 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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I get a reoccuring blister like rash on the back of my leg about once a month. It turns into a sore after a couple days and it hurts! What could it be?

I get a reoccuring blister like rash on the back of my leg about once a month. It turns into a sore after a couple days and it hurts! What could it be?

Recurring Blisters: There is a chance this could be herpes...I would get in when you have the blister and the doc can culture it and also get blood test to see if your body has ever seen the virus. ...Read more

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I have a recurring rash that turns into a blister on the same spot on my lower leg, at least once every year. What could be the cause?

I have a recurring rash that turns into a blister on the same spot on my lower leg, at least once every year. What could be the cause?

Blistering: It's possible that this is a recurring herpes infection at that site. A physician or dermatologist could advise you better if they could inspect the lesion when it erupts. ...Read more

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My lower legs have a swollen, red itchy rash...and blister like bumps. They become worse as the day progresses.

My lower legs have a swollen, red itchy rash...and blister like bumps. They become worse as the day progresses.

This will require: Evaluation by your physician or a dermatologist to provide accurate diagnosis and treatment recommendations. ...Read more

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What to do if I have this rash on my feet, legs, elbows, fingers, armsdespite the medicines I've been on, and now, these itchy blister like things show up?

What to do if I have this rash on my feet, legs, elbows, fingers, armsdespite the medicines I've been on, and now, these itchy blister like things show up?

Many possibilities: There are many types and causes of skin rashes that could cause itching. Several types of inflammatory conditions of the skin, allergic reactions, and sometimes bacterial, viral or fungal infections can cause rashes on the skin. Insect bites can also be the cause of a rash on the skin. Have it evaluated by a professional and get the appropriate treatment. ...Read more

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My 2 year old has a cluster of red blister like sores on her legs is that poison ivy rash?

My 2 year old has a cluster of red blister like sores on her legs is that poison ivy rash?

There are many: Different causes for rashes. Sorry, but this would likely need in-person assessment to provide an accurate diagnosis. Take care. ...Read more

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I have a tiny red blister like rash. What could it be? The itching keeps me awake at night. The rash is on my arms, legs, and stomach.

I have a tiny red blister like rash. What could it be? The itching keeps me awake at night. The rash is on my arms, legs, and stomach.

Blistering Rash: A blistering rash should be evaluated. Are the lesions blistering on their own or are they being "scratched" an therefor look like blisters. A prominent rash such as this deserves to be looked at. Hope this helps. ...Read more

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What to do if I have this rash on my feet, legs, elbows, fingers, arms, and face. This has I've been on, and now, these itchy blister like things show up?

What to do if I have this rash on my feet, legs, elbows, fingers, arms, and face. This has I've been on, and now, these itchy blister like things show up?

Many possibilities: There are many types and causes of skin rashes that could cause itching. Several types of inflammatory conditions of the skin, allergic reactions, and sometimes bacterial, viral or fungal infections can cause rashes on the skin. Insect bites can also be the cause of a rash on the skin. Have it evaluated by a professional and get the appropriate treatment. ...Read more

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What causes a blister rash on arms and legs after swimming?

What causes a blister rash on arms and legs after swimming?

Swimming rash: Basic skin sensitivity to treated water results in contact dermatitis, according to mayoclinic. Com. You develop reddened and irritated skin, sometimes with raised red bumps on your skin. Swimmer's itch is another skin condition that causes red and raised bumps or even blisters on your skin. Parasites in infected water cause swimmer's itch. The condition usually resolves itself after about one week. ...Read more

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I have a blister rash in the shape of a line all over. Stomach neck legs feet... what is it?!

I have a blister rash in the shape of a line all over. Stomach neck legs feet... what is it?!

BLISTERS ALL OVER: CANNOT HELP WITHOUT SEEING THESE BLISTERS.
HOW LONG HAVE THEY BEEN THERE?
PLEASE SEE A DERMATOLOGIST. AND SOON.
BEST LUCK ...Read more

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I have a tiny blister rash on arms and legs after swimming. Chlorine caused this?

I have a tiny blister rash on arms and legs after swimming. Chlorine caused this?

Yes: Chlorine is very caustic and destroy skin. You can either use castor oil to area or muscle rub cream. Soak with epsom salt and baking soda in tub 3tbsp epsom salt and 1tbsp baking soda to help skin. ...Read more

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Rash started big on one thigh. No itching, but some tenderness for a few hours - no pain now & rash decreased, but have developed blister like bumps?

Rash started big on one thigh. No itching, but some tenderness for a few hours - no pain now & rash decreased, but have developed blister like bumps?

In the absence of: A trauma, like a burn, it's unusual to have a painless rash that doesn't itch that turns into blisters. Herpes hurts, that's ur main blister causer but u would know. It may be fungal. Try some lotrimin (clotrimazole) with Hydrocortisone daily for a few weeks and go get seen if worsens or u get sick. ...Read more

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1cm scabs that developed from a pimple - 3 on my left thigh, 4 on my bottom and a cluster on my back. Also blister rash developed after scratch healed?

1cm scabs that developed from a pimple - 3 on my left thigh, 4 on my bottom and a cluster on my back. Also blister rash developed after scratch healed?

Rash: The main concern is that you have developed a secondary infection; such as staph or strep and you require an antibiotic as part of your treatment. If it is 1 sided and you have a history of chickenpox, it may be herpes zoster. Follow up for further care. All the best. ...Read more

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How do I get rid of foot blister? I also have a rash under my buttocks on upper thigh?

How do I get rid of foot blister? I also have a rash under my buttocks on upper thigh?

Blister: Avoid wearing the shoes that caused the blister. Do not open it as this can lead to infection. You can get adhesive moleskin to pritect it. If the rash is red and itchy it may be a yeast infection. It is best to have somoen see the rash to diagnose it. ...Read more

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Recently I developed a burning blister type of skin rash on my calf. Reddened and very sore (burning) feeling I also have blisters on my 1 hand palm.

Recently I developed a burning blister type of skin rash on my calf. Reddened and very sore (burning) feeling I also have blisters on my 1 hand palm.

Not clear: This sounds like shingles, but it could be another type of blistering rash. This is something which you need to take to your physician and maybe a dermatologist just to let them clarify what this rash is. There are different types of herpes virus and there's also some blistering forming illnesses that need to be clarified ...Read more

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I have a rash with blisters growing on my leg without any cause?

Possibly infectious: If the area is painful and/or there was pain in the area before the blisters appeared it could be shingles. They usually are pretty localized and the blisters will crust over. If it is recognized early there are medicines to take but even without treatment will usually resolve on its own but may leave residual pain at site. Your primary is the best place to go to be evaluated. ...Read more

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Rash on leg for two weeks that randomly itches and develops little blisters that pop when scratched. Spreads and swells when scratched.?

Rash on leg for two weeks that randomly itches and develops little blisters that pop when scratched. Spreads and swells when scratched.?

Rash: Have you been working outdoors or camping? It sounds like poison ivy or poison oak. Avoid scratching. Apply topical hydrocortisone or calomine lotion/benadryl lotion. Take over the counter antihistamine like cetirizine or loratidine if you can tolerate it. ...Read more

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I had a severe sciatica pains in the left leg, now I have blisters and a rash. What could this be. It's very painful?

Could be shingles: If the rash is on one side of the body only and the blisters are part of the rash you may have a case of shingles, especially as the pain may be the neuralgia component. Please see your doctor urgently as the antiviral medication against shingles is only effective within 24-48 hours of onset of the rash and blisters ...Read more

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There is a small patch of blisters on the back of my leg where my knee bends. It is also has a huge red rash around it. My leg also hurts to bend.?

There is a small patch of blisters on the back of my leg where my knee bends. It is also has a huge red rash around it. My leg also hurts to bend.?

Get examined: For further evaluation of possible bacterial or viral infection. Cannot be diagnosed without direct visualization. ...Read more

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I was on a raft all day Saturday and woke up Sunday with a few spots on my legs that look kinda like a rash Today they are blistering what are they?

I was on a raft all day Saturday and woke up Sunday with a few spots on my legs that look kinda like a rash Today they are blistering what are they?

Sun burn, all. Rxn.: If you did not use sunscreen while rafting, sun burns can blister and itch if severe enough. Depending on whether you were also camping, there may be a variety of bugs and plants that can cause allergic reactions. I can not further assess your symptoms with only the information you provided. Please contact a doctor if this gets more severe. ...Read more

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Red rash on left leg with blisters that appear to be crusting over looks like a tree branch. Painful and itchy> could it be shingles?

Red rash on left leg with blisters that appear to be crusting over looks like a tree branch. Painful and itchy> could it be shingles?

Yes: From the description given, shingles could be a possibility of your rash. Follow with a doctor for confirmation. ...Read more

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My 18 month old has a pimple like rash around her diaper line and on her arms and legs as well as blisters on the bottom of her feet?

My 18 month old has a pimple like rash around her diaper line and on her arms and legs as well as blisters on the bottom of her feet?

Many possibilities: Have her doctor take a look, as this sounds like a pattern that can accompany a viral or perhaps a bacterial infection. It might need time, or a prescription antibiotic cream/ointment, something else, or nothing. Give the doctor a a call and see what he advises. Hope this is helpful. ...Read more

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Husband has very red skin w/yellow blisters in his crotch and inside leg area. Temperature 99.9. Yesterday just looked like a heat rash w/itching and burning. Today seems much worse. The reddest I have ever seen

Husband has very red skin w/yellow blisters in his crotch and inside leg area. Temperature 99.9. Yesterday just looked like a heat rash w/itching and burning. Today seems much worse. The reddest I have ever seen

This: This rash could be a few different things.
- impetigo is a skin infection caused by bacteria - either streptococcus or staph. This needs to be treated with antibiotics.
- contact dermatitis is skin inflammation. It can be caused by plants such as poison ivy or poison oak or it can be from contact of a chemical or item that a person is particularly sensitive to. This is usually treated with steroid creams or oral steroids.
- viral illness such as chicken pox, shingles or herpes can also cause painful blisters on a red base. This can be treated with anti-virals or just needs to run its course depending on the severity of the infection.

The best thing to do is to contact his doctor and have him seen, since each possible problem requires different treatments. Good luck. ...Read more

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Diffuse rash across hands, arms, legs & feet for a week. Spots on hands now like small blood blisters (1mm), don't disappear under glass. Feel fine.

Diffuse rash across hands, arms, legs & feet for a week. Spots on hands now like small blood blisters (1mm), don't disappear under glass. Feel fine.

Allergic reaction?: Could be allergic reaction to medicine, food, or result from viral infection. See dermatologist to find out why if it's a real concern. ...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. Philip Miller
1,737 Doctors shared insights

Blistering (Definition)

A blister is a collection of fluid under the epidermis. A blistering rash is one in which ...Read more