I have a sore throat, which is red and my right tonsil is swollen and has a white mark on it. what is this and how can i treat it?

See a doctor: And have your throat cultured or run a rapid strep screen. If this is bacterial (commonly grp a strep) then it can be treated with antibiotics, but will not get better much more rapidly. The major function of antibiotics is to prevent post-streptococcal complications like acute rheumatic fever, but if viral, needs no antibiotics.