Hi, If marijuana is legal in your state, then go to a reputable dispensary and ask for a consult with someone. They should be able to advise you on what products you need. You don't need much to start. I would recommend a vial of liquid 1;1 CBD and THC. The CBD is calming and the THC is for the pain. The THC will cause weirdness if you take too much. I had to have Gamma surgery on a brain tumor-meningioma. They put a helmet on your head and screw it in. It doesn't hurt as they give you lidocaine. When they took the helmet off, I was very sick and had a massive headache. My neuro surgeon knew I took marijuana and had me to bring it in. He had the nurse administer it- it was a vial of 1CBD: 1THC and she put the liquid under my tongue.. Within minutes the headache and nausea were gone. I would not take it with your other drugs unless you check with your doctor. Have a good evening.