Have been having numbness in bottom lip fir a few days. i really feel eat after i drink or eat. what is the cause? i have mo cold sores.

Salivary gland stone: Is the only valid explanation to your symptom , pressure build inside your sublingual salivary gland that it's duct is blocked by a stone, that in turn press on nerve endings causes the symptoms. I would have it checked by your dentist, ct scan or ultrasound may be required ..

Numbness : Of the bottom lip is a sign of the neurological deficiency of the sensory component of the cranial nerve v. The neurological exam is warranted. Rec.: see your pcp for neurological examination and possible referral to the neurologist.