Once skin incision is made, drainage is done as follows ... the abscess is entered open the jaws of the sinus forceps or hemostat allowing the purulent material to escape (Hilton's method).

Post nasal drip is basically just mucus. So with spring allergies you tend to notice-- basically, it's your body's reaction to something foreign. So when you produce a little too much mucus then ...

An abscess, which is fluctuating, will open by itself through a small sinus and will lead ... before incision and drainage is done. If the aspirate is purulent, incision and drainage can be ...