Suggest treatment for seveare pain and swelling on the left side of the throat while having a negative throat culture test report
He should do some lab examinations.
Based on his symptoms I suggest doing a neck ultrasound to see for lymphadenopathy, a full blood count, and to do serology for EBV IgM, IgG (mononucleosis), CMV serology IgM, IgG.
Do meet an ENT specialist during this time?
I hope my answer helps you.
Dr. Monika Dede, Infectious Diseases Specialist