THIS EFFIN STINGS

I wore a brand new pair of jeans today and the crotch was stiff. I know that sounds weird but it felt weird all day. At my job I'm walking literally constantly for hours on end. I didn't feel it until I got home and took them off, the crotch of the jeans rubbed my groin area really raw. Like it's between my vagina and thigh like in the most awkward place to have wounds fml. Now the skin is risen, raw and it stings like all hell. I put Vaseline on it but god it still hurts. Oh my god man what a way to start the weekend I'm walking like a damn duck this hurts so bad. I don't even know what to do about it? Help?