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  • <p>The pus coming from an infected tooth will look for a way to drain off.</p><p>In some cases, it may create a channel that runs to the surface of the jaw.</p><p>This type of drain is called a fistulous tract.</p>
     

    The pus coming from an infected tooth will look for a way to drain off.

    In some cases, it may create a channel that runs to the surface of the jaw.

    This type of drain is called a fistulous tract.

  • <p>At the tract's end, if the pus can drain away you'll only have a small pimple or minor sore form.</p><p>You may notice some gum tenderness in the area. Or you might notice a bad taste (the pus) coming from the lesion.</p>
     

    At the tract's end, if the pus can drain away you'll only have a small pimple or minor sore form.

    You may notice some gum tenderness in the area. Or you might notice a bad taste (the pus) coming from the lesion.

  • <p>In those cases where the pus gets trapped underneath the skin, swelling will form.</p><p>The size of the swelling may change over time as the pus's ability to drain off is blocked or enabled.</p>
     

    In those cases where the pus gets trapped underneath the skin, swelling will form.

    The size of the swelling may change over time as the pus's ability to drain off is blocked or enabled.