Herpes Zoster is Viral&chickenpox is different n its also viral in origin,spreads by air.Actually i didnt get clearity regarding ur c/o,whether u are effected by  both r getting confused?If its Chickenpox only,then Without any medication,in its period,it will b automatically subsides.No spcfc medicines r there for that&That Calamine lotion is for  soothening the rash n its related symptoms,(Of Fever is more,Paracetmol will b given usually)&U have to take bland Diet,more liquids,fruits,water++.Where as though,Herpes zoster also viral based, but  its lateral effects r more.So u need to take medicines as precautionary,The choice is urs whether Allopathy r Homeopathy.