So i went to my psychologist and told her that i'm hallucinating from drug use, she didn't mention HPPD or seems to know much about it, she prescriped me first zyprexa, which had many after effects and we stopped. And now she prescriped me haloperidol( haldol or haloxen ) some vitamins called no-flush-niacin, and antiparkinsonics akineton. I see no difference at all with this treatment, ive been doing it for a month, do you think haloperidol is actually useful for hppd? also i've been smoking a lot of tobacco, should i quit tobacco if i expect to be healed?