Please help! tooth pain only when drinking liquids?

Cavity ?: Cracked tooth? Cracked filling ? Gum recession ? Had to tell without examining you or your radiographs. Have a local dentist take a look.

Pain lingers?: If pain lingers for hours after starting, then you may require root canal treatment. See your dentist as there are many possible causes and often easy and painless remedies.

Tooth pain: Tooth pain is caused when the nerve root of a tooth is irritated by infection, decay or trauma. OTC painkillers may provide some relief until you can get to your dentist. The good news is the prognosis is good with appropriate dental care. Remember, toothache pain will not go away on its own.

Dental Disease: You have some form of dental disease. See dentist for diagnosis/treatment.