How do I know if a rash is healing ? Will cortisone cream heal a rash In a week? Also is it okay to shave over a rash on the vulva? I use lotion and A&D ointment i just started using cortisone 10 cream today. the nightly itching has stopped it use to itch really bad. I really want to shave but I'm scared it may irritate it. Also might the lotion ( Jergens) be spreading it or healing it when applied 4 times a day?? The rash is pink not red. The rash is contact dermatitis I think.