Hello Dr. Prasad, I have a recurring swollen area on the back of my neck, left side of the spine approximately 3 1/2 inches long 2 inches wide. It is swollen, very red and weeping clear fluid. It does not itch but it is burning and very sore to touch. I first had this some episode about 4 weeks ago and it was healing and less than 16 hours earlier it was very hard to notice. I woke up and it was back with a vengeance. I did see a PA 4 weeks ago and I was diagno sed with shingles. No itching or intense pain, just this large weeping blister that feels like a burn. I took my full regimen of antiviral medication. Any ideas?