Why is your gum and cheek so painful 3 days after tooth extraction when the site of itself healing well?

Pain in the gum and cheek three days after tooth extraction can have several causes, even if the extraction site itself appears to be healing well. Here are a few possible reasons for the discomfort:

1. Dry Socket: Dry socket is a painful condition that can occur when the blood clot at the extraction site becomes dislodged or dissolves prematurely, exposing the underlying bone and nerves. This can cause intense pain in the gum and cheek, as well as a foul taste or odor in the mouth.

2. Infection: An infection at the extraction site can also cause pain, swelling, and tenderness in the gum and cheek. Signs of infection include increased pain, swelling, redness, pus discharge, and fever.

3. Nerve Damage: Tooth extraction can sometimes cause temporary damage to the nerves near the extraction site. This can lead to pain, tingling, or numbness in the gum, cheek, or surrounding areas.

4. Sinus Issues: The roots of upper molars are located close to the maxillary sinuses. If the extraction involves an upper molar, it's possible that the sinus membrane may have been inadvertently perforated during the procedure. This can cause pain and pressure in the cheek and upper jaw.

5. Trismus (Lockjaw): Trismus is a condition where the muscles around the jaw become tight and restrict jaw movement. It can cause pain and discomfort when opening the mouth, making it difficult to eat and speak.

6. Allergic Reaction: Some people may experience an allergic reaction to medications or materials used during the extraction, such as local anesthesia or sutures. This can lead to swelling, pain, and discomfort in the gum and cheek.

If the pain is severe or persists beyond a few days, it's important to follow up with your dentist or oral surgeon to determine the cause and receive appropriate treatment. They can evaluate the extraction site, rule out any complications, and provide pain relief measures or further treatment if necessary.