help pleasseeeee!?

Angelica

okay so this weekend, probably about yesterday or maybe even friday, my throat started feeling funny like almost smaller and harder for me to breathe and/or swallow, but i didn’t think anything of it because i’ve been at different peoples houses and assumed it was the change in airs. but tonight when i got out of the shower i decided to look just in case, and i see this. does anyone know what it could be?