my boyfriend has severe jock itch and has tried multiple creams and powders (including Rx meds) but cant seem to get rid of it.  He is a heavy drinker and i keep telling him it could be his sugar intake that is aggravating it as I have seen similar posts stating that.  Could that be part of the problem??
Welcome. I have gone through your query. It is difficult to comment on it without examination, so I would either suggest you to see doctor for examination and for exact diagnosis or upload the pictures here, I'll go through them, and provide you with specific advice. First confirm the diagnosis, it is not advisable to use the medicines without knowing what it is Hope this helps. Take care