Shingles/herpes/allergy problems. To do.

Last year around may I had ulcer on my lips and inside mouth. After two months I had ulcers at the earlier spots along with my penis. Again after 2-3 motnhs there was an out break. Now I felt like I had herpes virus (despite not having any sexual history). This repeated again after 3 months with too many blisters at by back and chest. Lips, inside mouth & scrotum are badly effected. This time after it healed, I are too much of eggs chicken and mutton to which I am allergic. And the situation came back again within 2 days of consuming. This time I have red patches on my whole body with blisters which won't burst at my back and chest. I had chicken pox at a very tough age. I am in terrible pain and don't know what to do.