I am glad that ibuprofen helps the pain some.
I also have skin pain and I know how irrating clothes even changing clothes can be.
This last year I began using Cobroxin topical pain reliever. It is an OTC. It has taken some of the bite off this pain. It is knew only approved by the FDA recently. It pain relieving agent is cobra venom.
I think it works as some type of numbing agent. Although I am not sure.
My neurolgist had recommended it to me for muscle and skeletal pain nerve pain and it has helped manage that too.
How clsoe are your legs together when you walk? because What used to happen to me was my inner thighs rubbed against each other, and caused similar irritaiton. I wasnt overweight so I dont know why it happened, nor do I know how i stopped it from occuring again.