Can an abscess drain sanguineous?

If an abcess is not drained, it will drain itself..the problem is where it drains can cause some very serious problems,,and in some cases death.

drain it

You could, but it's best your doctor do it. You may need a bout of antibiotics. The mouth takes longer to heal that any other part of your body.

Yes

you need to know the PITCH of the drain line to give an proper answer