Physicians typically use criteria from the CENTOR score to determine whether a patient is likely to have strep - one point each for:
- absence of cough
- fever greater than 100.4
- pus on the tonsils
- tender/swollen lymph nodes along the front sides of the neck
Given your son’s age (strep is more likely in kids 3-14) and the symptoms you described, his CENTOR score is in the range in which physicians would definitely test him with a rapid strep test to assess for strep. I would highly recommend you take him to his doctor to find out for sure with this test if he has strep.
Hope he feels better soon!