Sore throat

Hi girls,

So I'm suffering from a really bad sore throat right now (just started today). My throat feels dry and hurts really bad (specially when I swallow). I just noticed these red spots on the roof of my mouth. Any idea what these are? Also, what home remedies do you guys use to get rid of this / soothe your throat?

Note: I can't have medicines, cause it may react with the medicines I'm already having.