Sore throat feels like a pimple on the back of my tongue used sore throat gargle(betadine) on the right side its painfull when i swallow?

If persists consult : Paulie i think could be one of several things , none of which is severe. Can be an apthous ulcer (canker sore) or a temporary herpetic type sore, or a irritated taste bud. Can consult dds for a swizzle rinse to relieve the soreness. Usually this rinses have a numbing agent that helps the soreness. Not gone in ten days consult dds or md. Good luck.

Warm salt water rins: The safest and most effective attempt at causing that pimple area to go away is warm salt water rinses. Do it for a couple of minutes, 4-5 times a day. If the pimple continues, contact an otolaryngologist to evaluate the pimple area.

Possible ulcer: This may be an aphthous ulcer, but if persists should be checked.