well boi, just rinse and repeat several times untill there raw
wear a condom next time
x ma, dont you mean eczema??
I get a red rash there and the best you can do is to keep it dry (NO WET CLOTHS) Or if it is really servere i rub 3-4 finger pinches of flour!
Often when I have a rash I use savlon cream on it and take an antihistamine like Claratyne or something.
Use a cream!