Hi, I'm a young male in my early 20's and for the past two to three years I've had this skin condition, I haven't been to the doctor about it yet but I plan to soon. It started out around my neck and was tolerable at first but recently I've noticed that it appears to be growing down my body particularly around my arm pits, sides and devastatingly now my groin, inner thighs and upper legs. I haven't tried treating it because I don't know what it is, I just hoped it would disappear.
I've recently started a new relationship and this is really knocking my confidence to get intimate with my girlfriend. I can hide my body under a vest but now that it has reached my groin area I have little options plus hiding myself is not really sustainable. It does not appear to affect my penis or scrotum but is fairly visible around them. It is usually a pale pink colour but after a bath or shower I notice it turn a deep red, it is not itchy.
Please help me, I hate my body because of this. I have attached two pictures of my body, not my groin area.