What Are Throat Blisters?
Throat blisters are painful swellings that occur on the soft mucous membranes lining the inside of the throat. The blisters usually are filled with clear fluid or pus and might break open, turning into throat ulcers and causing increased pain. Apart from a sore throat, those afflicted by throat blisters might experience fever and other sickness symptoms as well. Most often, throat blisters are caused by various viral infections, such as a cold or flu, but they also can be the result of certain inflammatory diseases or other conditions. With so many possible causes, the only way to be sure of what has caused a particular outbreak is to let a doctor examine the blisters.
