I tried a 3:1 edible for severe migraine. It only made my visual symptoms worse.Another option?

I would try a High CBD and Low THC product. Seems like the psychoactive effects might have caused your visual symptoms to increase. Also, staying away from Sativa and sticking to Indica might help as well if a high CBD products is not working on its own. You might want to try a 14:1 or higher ratios of CBD:THC to minimize the psychoactive effects.

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