My neurologist called teva and they told him that my reaction to copaxone the other day could not be due to the copaxone ( not a normal side effect) because they had never heard of anyone having cold chills and shaking. So maybe I should try again (their opinion). My neuro does think it is an allergic reactions and said no. The same thing happened to me after the IPIR's I experienced last year.

As far as the arm goes, it does seem to be the hardest place to inject. I would sometimes skip that area and do my stomach twice in one week (left side - right side). You meed to be careful when injecting in the tush that you do not hit a nerve,