Hi, I Have A Two Purple Spots On Either Side

Hi, I have a two purple spots on either side of my cheeks on the inside next to where my teeth clench, but I have a swollen gland right under my right jaw line, putting pressure on my esophagus. My allergies have been going crazy for about a week and I'm exposed to the public for work. I also have pus filled blisters In the back of my throat.