I've got the same problem - sore hoo hoo but mine is from a combination of stress, DTD in the spa, DTD a bit too much - so I've got thrush

What about using some olive oil or something like that - not a commercial cream?

I also get sebaceous cysts along the edge which look like pimples but are from swollen sebaceous glands at the base of the hair follicle - runs in the family & DP usually tells me when one is ready to pop.