[chewstermaniac]

If one required an intramuscular injection of an oil based substance - 2 a week for, say, oh, I don't know, 10 weeks, where would said individual inject?

Now, in theory, an injection site shouldn't be used to often or problems may occur, such as absesses (forgive me bad spelling).

What exactly would said individual look for (warning signs) that a site is over used, and what sort of "spots cycling" would a person use to avoid any problems from developing.