Bumps on the back of your throat usually mean that you have an infection or something has irritated your throat or tonsils. Red spots or dots, white patches, blister-like bumps or swollen lumps at the back of the throat can cause pain and discomfort. The throat bumps could also be a sign of swollen lymph glands due to a viral infection. If you get a sore throat, there is a good chance that you or your doctor will notice red patches on your tonsils. You may also experience painful swallowing, notice white streaks of pus at the back of your throat, or have swollen tonsils.
An injury to the skin is one of the main reasons why you develop the blisters. Blood blisters in mouth is caused by the lesions present on the inside of the mouth. They appear as a single blister or in groups. Regular blisters and blood blisters in the mouth are not the same. People consider mouth blood blisters to be mouth ulcers, but both are different.
Tongue, mouth ulcers may be other symptoms of COVID-19, researcher says
Painful sores or blisters under your tongue can be an irritating source of discomfort. Our tongues are necessary for speaking, tasting food, and swallowing. Any kind of blister or sore bump under your tongue, on the inside of your cheek, or on your gums can cause your tongue or mouth to be extra sensitive to heat, flavors, and even make talking difficult.
Having a sore throat is uncomfortable enough, and even more so when accompanied by a sore tongue. Soreness in both throat and tongue isn't a rare symptom of certain health conditions, however, your diagnosis depends on other signs and symptoms you may be experiencing. A painful throat and tongue is typically caused by something visible and obvious, although there are other less obvious reasons you should be aware of that might require a doctor's diagnosis.