leg red

Could it be his nappy?
My ds has a dry red patch on his inner thigh half way down his thigh. It doesn't seem to both him and its not nappy rash as it actually not wear the nappy touches (it does touch when he's crawling). It is quite big, the size of my thumb.
Should I be concerned or should I just leave it be as it doesn't seem to upset DS.
He is starting to move towards walking so maybe that will help??

Sounds exactly like what Blake has, he has almost like a ring around both legs but mostly at the front. Several doctors couldn't tell me what it is but it definitley seemed worse in summer. I think what Blake has is some kind of dermatitis so we've been using aqueous cream and it's improved heaps, almost gone if we use the cream several times a day. We've also stopped using any kind of soap in that area and making sure his showers aren't too hot. Hope this helps a bit as I was starting to think that he might be having a reaction to his cloth nappies but if anything it's worse if he's in sposies.