multiple sclerosis
"I began using Avonex when I was diagnosed in March of 2007.  I think it has done wonders to stave off progress of the disease.  I have not had a major relapse since being on the medication, nor have I ever had an injection site reaction.  Side effects were aches and flu-like symptoms the following day, which subsided with the following techniques:
Day of injection, filling up on fluids.
2 hours prior to injection, taking 2 ibuprofen.
Injection in the buttocks rather than thigh- this made a big difference. Injecting 2 hours prior to bed, then taking 1 more ibuprofen before sleep.
Keeping hydrated the day after the injection.

I love that it's once a week and there are no red sores from the injection as with other MS medicines."