i must admit that i have a client that went the same way, found out she is affected by savlon, she used bepanthen cream and it cleared within 1 hour, so thats all she uses from now on with any pieces she gets
this photo looks like it could be a rash from the effects of :
shaving or the pressure from stretching the skin
as matthew has said, just keep your eye on it…… let us know how it goes