What Is The Treatment Required For Atopic Dermatitis?

Good afternoon, I'm Divya 28 yrs old unmarried girl from Bangalore, India. I suffered from a severe case of Atopic Dermatitis during 2006-2007. It was healed but I do get sudden bouts of infection which makes me rush to the doctor.

During Oct 2008, I had gone the same infection in my vaginal area which had happened due to change in water. I was healed but the infection appears in the same area very repeatedly.

I have a habit of masturbation and I have noticed that whenever I indulge in it extremely, the infection persists. I am to be married soon and I am worried that the infection may happen after sexual intercourse with my husband. I am also worried the infection may also spread to my husband. Is there some way, I can stop this infection from happening repeatedly?