Infection or Inflammation?

Did my usual injection in the deltoid, sterilized everything, and after a few hours i noticed redness a few inches below the injection site, i’ll post a pic. It is slighty warm, no swelling or fever. It is a little bit sore, but i do always get PIP since i’m injection short esters. What do you think? This is from yesterday btw, today the redness looks almost unchanged and the pain has subsided by 60% i’d say, the area is a little stiff and slighty hard to the touch

I’m thinking your fine.