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Itchy dark rashes on the leg spreading. reason?

I have a itchy rash on the outside of my upper right leg. It came last summer - went away after summer. And is now back after I have been in the sun and is spreading! They are faint dark patches with some streaking. It looks like a laid a curling iron down on a piece of paper really fast. Please help! Cortisone cream seems to help a tad bit but not much.
Asked On : Sat, 20 Apr 2013
Answers:  2 Views:  55
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Diseases and Conditions
Dermatologist 's  Response
Welcome to health care magic
It looks like you have a fungal infection from your description. We call it Tinea. Apply an antifungal cream like ketoconazole 2% twice a day over the patches. Even after the rash subsides continue applying for another week so that it won't recur again.
Do not apply cortisone which is a steroid. Even though it temporarily decreases itching, it allows infection to become extensive.
Hope this helped
Take care
Answered: Sat, 20 Apr 2013
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General & Family Physician Dr. Muhammad Ishfaq Habib's  Response
Welcome to HCM

The rashes anywhere on the body can be due to several reason. The most common reason for rash is an allergic reaction, next to it is fungal infection and still other one is viral infection. The type of rash you have developed in exposure to sun seems most likely to be due to an allergic reaction. Another feature of allergic rash is that it will more that one and often spreads spontaneously and simultaneously.

The hydrocortisone cream is no doubt very effective in allergic reaction but not fully effective alone until used along with antihistamines. Therefore it is recommended to get antiallergic tablets orally and hydrocortisone cream topically for best results.

Answered: Sat, 20 Apr 2013
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