Hi there. I read your question with interest. To be very specific, you need to visit a
dermatologist. However seeing as you are disgruntled with your 2 prior experiences, make sure you review with the previous
biopsy report. If as you say you have
psoriasis, it may be part of the same feature as in 'flexural psoriasis'. This is termed 'intertrigo' in your case & it is very possible there is some superadded candidal infection given your age. Hence perhaps 2 tablets of
fluconazole 200mg taken at a one week interval (total 2) may do you a world of good. I am not a big fan of
betamethasone by itself in long-standing psoriasis & it may cause super-added infection i suspect in your case. Cheers & GodSpeed!