During that time I started to itch on my arms and hands and was told by a doctor that it was Dyshidrosis and that it was triggered by stress. I actually tested positive for shingles and HSV1(fever blisters). He gave me Valtrex to take 1 gram 3x a day for a week and then a daily maint. dosage of 1 gram a day. I have never had a shingle outbreak or anything external.