i went to the dr last week as i've had a really painful rash under my arms for a fortnight. i thought it might be connected with shaving, but she thought it was probably fungal (nice....). she gave me some steroid/anti-fungal/anti-bacterial cream which has worked beautifully. still a bit red but not painful at all. i didn't go specially to the dr, just mentioned whilst i was there about something else. worth a go i reckon.