Hello and hope you are doing well.
The symptoms described could be due to an infection, most probably streptococcal or a viral infection. Strep sore throat needs to be treated with an antibiotic as strep is a bacteria. Viral sore throat is best treated with rest, warm oral fluids and (OTC) tylenol (acetaminophen) or ibuprofen for pain. If you develop a fever, or if there is swelling and pain, you will need to consult your primary care physician for a strep test, which if positive you will be given antibiotics.
Hope this helped and do keep us posted.