Hi Thank you for asking HCM. I have gone through your query. Your problem can be most likely due to yeast (fungal) infection. A swab test will be helpful to rule out the condition. For such condition using clotrimazole cream ( monistat ) for local application will be helpful. Avoid soaps and irritants to wash the area and instead you can use saline or warm water. Herpes is presented as fluid filled rashes. There will be burning sensation or pain associated with itching in such case. 2 to 3 weeks are enough to get herpes attack. But from your symptoms it is most unlikely. Hope this may help you. Let me know if anything not clear. Thanks.