Betaferon

Hi,

Ive been injecting Betaferon since January this year,and had been taking copaxone before then, But had a major hit in December 2013,and was advised (well told!) to use Betaferon. Basically i wanted to know if IM the only person who finds injecting this drug painful?. I have lost over 4 stone this year,so maybe this may have helped to give me more pain?,but i virtually didn’t have any issues with copaxone. Maybe 1 in 4 injections ok,but other 3 are painful. any advice would be appreciated. Ive always injected at 8mm,so cannot make depth any shallower.