naw bro, i doubt it was too much oil causing the pain, it was just the prop. deca mixed with anything is known for making the pain lessen, so you could mix the deca with your prop if you are still on it. If this is your first time taking prop just deal with the pain, it will get better though. Prop used to bother me but not anymore at all. Try 2cc's of phenylprop in your biceps! NOT THAT FUCKING HURTS! puts 1" of swelling on overnight!
just take some ibuprofin if it gets too bad, and be careful injecting prop back into that same place for a week or so if you can help it