After sex, had yellow clustered blisters on vagina. What could it be?

Question

Hi doctor,

My sister is 23 years old. She had unhygienic sex a couple of weeks ago. She started feeling itchy on her vagina. I am worried it might be herpes but I need confirmation from a specialist before we visit the doctor. It looks clustered and yellow. No hard lump under and it just looks inflamed. She does not complain of pain anywhere else. There is no pain inside the urethra, no burning sensation while urinating and the discharge is whitish-yellowish and watery. She does not have any sign of fever. She bought labia herpes cream yesterday. After application it changed the color today to darker yellow and some of it fell off. What could this be?

Answer 1

Hi,

Welcome to icliniq.com. I have reviewed the attached photographs (attachment removed to protect patient identity). The closely grouped fluid filled blisters and yellow crusted lesions seem to be most likely herpes infection. You do not have to apply Acyclovir cream as it will not be much effective in genital herpes. You should start with oral antiviral like tablet Acyclovir 400 mg thrice daily for a week and apply topical antibiotic like Mupirocin cream on the lesions twice daily. Do not use soap over the affected areas and wash only with plain water. the probable causes include herpes virus; either HSV1 or HSV2 (herpes simplex virus 1 or 2). The probable diagnosis is herpes genitalis. The preventive measure to be taken is avoiding intercourse till the healing of lesions.