It probably is infection in your throat, could be tonsillitis
(inflammation/infection of the tonsils).
Treatment options would be:
1. Take Paracetamol/Ibuprofen
(antifever and pain killers)
2. Lukewarm water gargles
3. Avoid cold
4. Take adequate rest
If symtpoms persist another day or two, get checked over by family doctor. You may need some antibiotics.
Recovery should be within 3-5 days
Dr Tejas Shah