drainage-front top mouth HELP!

[Unoescudo]

Let me first start by saying I have porcelain caps. I have a drainage coming from the top left side of the inside of my mouth (above canine 3). It started out as a horrible taste in my mouth and made my mouth feel weird, sometimes causing tingling.  Recently, a dentist thought he could help. I pin pointed where the drainage was coming from, he cut the small spot and put some medicine in there. Now that spot has moved towards the back of my mouth (above first molar 6). He can not tell me to get rid of the problem or prevent it.

Here is a complete list of my symptoms.
*horrible taste in my mouth (taste somewhat metallic)
*when I sneeze the drainage comes out
*when I lie down and sleep for hours the drainage seems to stop
*tingling in my mouth at times

Please help! I have tried everything... first, second, and third opinions... Every test known to man, every type of dentist/ physician! (including an MRI) I am willing to try just about anything!!!

[garrettandian]

A related discussion, bad taste mouth daining still occcuring and solutions? was started.

[scottma]

Your descriptions suggest oroantral communication. Seeing an ENT or oral surgeon is advised.

[Unoescudo]

Also forgot to mention that I have had sores on my tongue that come and go very fast. Normally 1 at a time.