Here are suggestions and possibilities offered by others:
Take him to the doctor, it is impossible to diagnose things like this without seeing them.
SMARTIES!!
Mouth ulcers wich should clear with bonjela, a cream for the mouth. An abcess which is like a tooth infection but can spread. Do you smoke? This could be some form of cancer. You should see your doctor or dentist just to be safe
My tiny red blisters are 3 on my stomach. They form a triangle. Is this a sign of something?
There are multiple factors that could cause a tongue to develop red blisters. Vitamin deficiencies, geographic tongue, scarlet fever and Kawasaki syndrome are among these factors.
Fruit by the foot!
Go see a doctor.
he or she most likely burnt their tongue. rarely it could be an allergic reaction.
I doubt the Vicodin caused the tongue blisters but it could have triggered the virus that is the cause of tongue blisters (canker sores on the tongue). They can be treated at the dentist office or a general practitioner's office. There is a solution that will help with the pain and treatment of the sores. If you have a dentist just go there and they will probably see you without an appointment since it only takes a few minutes to give you the solution.
go see your doctor i could be infected and if you leave it too long you could have tongue problems :/
TCP is a type of antiseptic that is widely available in the UK and Ireland. Yes, TCP can help fight blisters on your tongue but it must be diluted with water and not swallowed. It is fine to dab diluted TCP on your tongue or to gargle it.
Go to the doctor and they will give you medicine 4 it