Tooth and facial bumps, how I can treat this?

I have a question. I injured my back left tooth on a rock I bit on in a salad I ordered. I immediately began to feel the worst gum pain ever. I went to the er and was given some meds. I then noticed that the area was hurting more so I went to a dentist. I was informed that I needed a root canal. I guessed he would say that. My biggest issue is this. I have noticed that on my face I have a raised blister like bump on my face in the exact position where the injured tooth is. I have been to different doctors who don’t know how or why its there. I’m given antibiotics that treat my tooth infection, yet that “bump” is still there. I’ve tried to self treat it and stick a sterilized needle in it and a little pus comes out. Can someone please explain to me what it is and how I can treat this?

At the point when messed with such a condition, you would clearly search for an intends to dispose of them in a quick way. That being said, these pimples are not serious. You can undoubtedly dispose of them adequately by emulating some basic routines. Here are a few tips for you:

Take a clean washcloth first-Wet the fabric in warm water. Tie your hair tight with the goal that it doesn't fall on the lips. Give a hot clamp with the fabric on the lips for solace. Then again, you can apply a cool pack for a viable result.
On the off chance that you are utilizing lip ointments, keep aside it for a few days. Check whether the demulcent contains any hurtful compound of which you may be hypersensitive. Lip salves have been discovered one of the finish reasons why individuals get influenced with pimples at mouth and the lips. When you apply the sticky ointment, it draws in dust and contaminations when you step aside. Clean and polluting influences regularly make the rule foundations for mouth and lips pimple inflamation.
Wash your lips and mouth with a cured mouthwash. Abstain from utilizing cleanser when you have pimples on the lips. On the other hand, you can attempt against pimple inflamation items that are accessible in the stores for this reason. Utilize a face wash as a part of spot of cleanser for development.