My son (18 yrs) has pimply rash like on the inside of his arm.  In the crease and down his arm a bit.  It is very soar and a couple look like a pussy pimple.  It is only one arm.  He had this last year but it has just reappeared.  He is a triathlete and wears a wet suit sometimes in the water.  I thought maybe that was causing it.  We have made sure the wet suit is clean.   I have been putting topical antibiotic cream on it but it isnt getting any better.
Hi and thanks for query, A rash as such that continues to reappear and does not respond to normal treatment might deserve the opinion of a physician. This could be allergic, infectious, or due to some autoimmune or inflammatory disease. Diagnosis and appropriate treatment depend on a proper clinical examination and laboratory testing if necessary. These conditions are most of the time not difficult to treat when diagnosed properly. I would advise you consult your family physician for a physical examination and proper orientations on treatment and follow up. Using inappropriate or in adapted medications could cause resistance or lead to other complications. Thanks and kind regards, Bain LE, MD.