Conversation: The conversation between human and AI assistant.
[|Human|] 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.
[|AI|]  Hello, Welcome to Chat Doctor It looks like you have a fungal infection from your description. We call it Tina. 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 helpedTake care