What causes red, itchy and circular rashes in the feet, lower back, and arms?
Patient: I have circular rash on top of both feet, central lower back, back of arms, outside of legs and thumb joints. Low numbers on blood tests for Lupus and hodgekins lynphoma has come up at doctors offices. no one seems to know what it is. Rash is red, itchy and scaley. Sometimes painful. Even cool showers make them flare up. I ve had it for 1 1/2 years. Doctor: Hi,  The rash could most probably a fungal infection (Tinea infection). But there are many other differential diagnoses such as urticaria, contact dermatitis etc. If you are too busy to consult your doctor, you could take an antihistamine tablet and apply antifungal cream. If you do not get any improvement or if your rash worsens, you should consult your Dermatologist for further management.  Hope I have answered your query.  Let me know if I can assist you further.   Regards,  Dr. Siva Subramanian,  Dermatologist