Ummmm depends on where you live, pretty sure california has a few doctors that will prescribe weed for it. Again, depending on which state u live in, it could take awhile and cost some dough (tho california has the best options and prices for consultation/med card)
I'm in the process of getting my card in oregon, shits tricky and pricey (each year you have to renew your card or u automatically turn into a pot growing criminal)
They need national laws to take care of this shi---oh fuck it, just legalize it federally already ya damn congress dinosaurs!!!