What Causes Boils On The Inner Thighs And Buttocks?

Well i have been getting things that i believe are boils but im not quiet sure. Recently i have gained alot of weight and they have seem to appear alot more. Im not quiet sure if they are herpes or boils though becaus i usually get them on my inner thighs or near the butocks area, and occasionally on my vagina lips, but rarely. Usually when they appear they feel like a syst and they swell. I try to pop them and when i do puss and blood usually come out. Some times after popping them or after they pop on their own it develops a hole. Ive researched them and it looks like as if i have staff but im not quiet sure. My husband recently has been tested and has came up clean, so i think that i am as well. But im not sure if its possible for me to have herpes and him not to? I am waiting to get insurance so I can go to the doctor and have it checked out so ill know for sure but till then I would like to get an idea of what it could possibly be. Ive only have had one sex partner in my life. I have recieved oral sex from two other people though. But before I became sexually active in anyway I have gotten what I believe to be boils but mainly in my thigh area. But like i said Ive gained alot of weight recently and since then they have popped up more. I dont have the symptoms of herpes though, But i do know you dont always get those symptoms. I was also told i get boils because i shave in that area quiet frequently. There is also times where i do get syst like thing in my underarm region. I am very concerned and worried.