Paula,

The oral wound from an extracted tooth can be open for several weeks. Everyone heals differently and each extraction site heals at a different pace. The gum tissue eventually closes the wound but the bone takes about a year to completely fill in. So there is a lot of healing that goes on after a tooth is extracted.

I would suggest that you stop pulling your cheek on the left side causing the tissue to open over/near the wound. Every time you do that you break the connective fibrous tissue and it has to reform all over again. It's similar to having a deep cut that is trying to close and you keep spreading it open. Just be mindful of your diet, be careful eating and be sure to rinse your mouth with warm salt water 3-4 times a day for the next couple of weeks. If at any time you develop pain, swelling, or symptoms of being ill, go in to see the oral surgeon.

I hope this helps.
Bryanna