Thanks for posting your query to HCM.
As per the history and observation it appears to be irritant dermatitis
- inflammation and redness
of skin due to any chemical agent, in your case is the lotion which you are using. Even if this lotion is not causing the problem then also is because of bit more force and friction applied on the skin causing skin trauma
. The one thing you should do is stop using the lotion and the second thing is to avoid the pressure and force at this soft gentle area.
Now for herpes, these manifest as small, multiple (not one or two), fluid filled vesicles healing completely in 5-7 day (not 3-4 days). Generally do not reappear in 2 weeks of period, so rest assured about herpes. One more important thing to mention is it is Herpes simplex
2 (not 1 ) which most commonly involved in genital infection
Have a healthy life.
With best health wishes,
Dr Sanjay K Kanodia