I’ve pinned some high dose oils that have caused this in me. I like to pin about 45 degrees to the outside of your location. Most of the time about 7 days and it will clear. Not sure how long ago you pinned but, trust your gut. If it doesn’t feel right. Go see a doc. Abscess is nothing to joke about. And a slin pin? I agree, not deep enough and could cause cellulitis… I’m no doctor, but if your worried, go to a doc or immediate care.