What causes spreading rash on inner elbow, chest and thighs?
Patient: I am a 19 year old female. I've had a rash on my inner elbow for about 3 years now and it won't go away. It not raised and it doesn't itch. Its a little red, very noticeable. It almost looks like dry skin. It has recently spread to my inner thighs, all over my stomach and chest. Im starting to get worried Doctor: Hi,  The rash could be an erythrasma or a pityriasisis versicolor. The former condition is due to a bacteria and the latter is due to fungus. So, I request you to consult your Dermatologist for confirming the diagnosis and for initiating the proper treatment.  Hope I have answered your query. Let me know if I can assist you further.