After 1 year of exposure what test should I do tobe 1000% sure of my hiv status and from which lab in kolkata? I had tested 3 times at 3 month 5 month and 7 month (4th generation) all non reactive but suffering from folliculitis ? taken medication from dermatologist but it's still there. I want to be 100% sure. Nb: please do not say it's impossible after 3 or six month because in mumbai a person tested negative for 2 years on elisa test in 2016.