I have blisters in my thoat. Conncened aboutwhat it might be

Hi, i have these yellow blisters on the back of my throat and im not sure what it is. They dont really hurt, but i do sometimes have trouble swallowing (only occasionally). Anybody have any idea what they are?

Blisters can be a symptom of the cold surroundings, or it could be acidic food. Either way it heals over time.