<s>[INST] I have a rash in armpits and groin that started while I was in Iraq in 2004. It does not respond to terbinifine tablets, lamasil creams, or even monostat.  It comes and goes about every six weeks.  I wash with Tea Tree soap and it seems to help.  Also bathing the area with saturated salt solution helps too. [/INST] Hello, Thanks for the query, Armpit and groin area are more prone to develop fungal infection. The duration of treatment is long in fungal infection.  You might have developed fungal infection. Your description matches with that. Usually fungal infections are itchy and recurrent. Please get a KOH mount done, This can confirm the fungal etiology. Treatment can be with oral antifungals as well as with topical antifungals. Treatment must be continued for at least a month to prevent recurrence. Please meet a dermatologist for exact diagnosis. Let me know if you have any other doubt. You can ask a direct question to me on this forum, following the below link.https://urldefense.com/v3/__http://www.ChatDoctor .com/doctors/ Chat Doctor. Thank you </s>