Thanks for all these additional details. I am sorry to hear about your problems.
Well, i can understand the pain and stress associated with such incidents. Images on internet may often confuse one and divert from making a correct self diagnose.
From the description it sounds to be Folliculitis
It arise from Hair follicles and sebaceous (sweat) glands and occur due to the fact that hair follicles become infected, often with Staphylococcus aureus.
You can apply a warm, moist washcloth or compress to the affected area 4-5 times a day to relieve discomfort and help the area drain. You can try over-the-counter hydrocortisone cream to affected area.
You should gently wash the infected skin twice a day with antibacterial soap or apply an over-the-counter antibiotic ointment. You can use a clean washcloth and towel to dry off each time you wash.
Syphilis, is associated with small, firm, painless sore, but some times one may have multiple sores.
Genital herpes causes red blisters which grows around the genital area and anus parts. In coming days, this blister can burst can give a kind of smell.
Most likely you don’t have STD.
However I would wait for test results. Please follow the measures, as advised above and discuss this issue with your doctor.
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