migraine
"This review is for the injectable form of Imitrex (sumatriptan) only. For anyone that has tried the pill or nasal spray forms and found them ineffective, please try the injections. They work wonders and act fast. I've tried the other types and they actually seemed to make me more nauseous and (especially the nasal spray).  I keep one in my purse at all times so that I can get relief anytime a migraine hits. The pain is not bad as the needle is very small and thin. You don't have to jab yourself, just press against your skin and push a button. The pain of migraine is much worse! I've found the most comfortable injection site to be the bit of fat at the top of my buttox. I use the 6mg injections but I'm pretty sure there is also a lower dose."