Better rotate: Use at least two injection sites. You don't need to rotate between four sites. Rotating between sites gives the individual sites a chance to recover from the injections. That creates less pain and a lesser chance of a site reaction.
Answered 12/11/2018
5.6k views
Injecion: You should rotate the sites because people often react to the shot with redness and pain.
Answered 12/11/2018
5.4k views
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