I always wipe it with some alcohol when I'm done. My 1st time was a sus cycle and it used to leave a big knot on my ass after injection, I would take a hot shower and rub the knot to try to get the oil down. What is your cycle?
Rub with alcohol, and start massaging with a sterile pad, then little stretch...if its a thigh or shoulder ill do some squats or raises and rub for a few more. Than youre good to go