Hello and welcome to healthcaremagic. I would like to rule out a possibility of Tinea/fungal infection, as a cause for the rashes. I would suggest that you get a KOH scraping for a confirmatory diagnosis. If it comes out to be positive, you could use a topical antifungal cream e.g clotrimazole cream twice daily for 2-4 weeks. An oral antifungal e.g fluconazole 150 mg once weekly would also be advisable for a fungal infection. Another possibility is, Allergic contact dermatitis to perhaps shaving cream, which can be taken care of by using a topical mid -potent steroid twice daily. An OTC antihistimone e.g cetrizine once daily would help you symptomatically with the itch. regards