You paint people who use cannabis with a very broad and biased brush.
I contracted shingles 9 years ago on the right side of my face and head. I was fortunate that the shingles didn't get in my eye but they left me with something called post herpetic nerve pain. To the point that I could only sleep a couple of hours every night.
My PCP prescribed gabapentin. I didn't like the drug profile but tried it. No help at all. I tried what a naturopath recommended. I tried traditional and laser acupuncture. Nothing helped. I dealt with this for years.
Finally, I decided to apply for a medical cannabis card. The stuff worked! I could smoke a small bit before bedtime and sleep the entire night. I still use it to this day. And GSC is an excellent strain for nerve pain!
Your attitude is outdated, planted it the reefer madness past.