Hi Thank you for asking HCM I have gone through your query. Bubble like appearance if painful and burning sensation is present then genital herpes should be ruled out. If that is clear it can be bacterial infection. For such case in my patients i advise ointments with combination of antibiotic gentamycin , antifungal like miconazole and corticosteroid clobetasol for local application. Avoid soaps and irritants to wash the genital area and instead you can use saline or warm water. Hope this may help you. Let me know if anything not clear. Thanks.