Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Contact a clinician sooner if symptoms worsen after initially improving, a new rash or medicine reaction appears, fluid intake becomes difficult, or urine output decreases.
Pregnant people, infants, older adults, and those with major chronic illnesses may need earlier review.
Routine follow-up is reasonable if fever does not improve as expected, joint symptoms limit normal activities, or pain and swelling continue after the acute illness.
Follow-up can also review test results and make sure another infection or type of arthritis has not been missed.
The article also says
For persistent joint symptoms, keeping a brief record can help.
Note which joints are affected, whether they are swollen, how long morning stiffness lasts, and which activities have become difficult.
A clinician may recommend rehabilitation, further testing, or specialist care based on the pattern.
Recovery time varies.
Gradual improvement is common, but it is reasonable to ask for help when pain, fatigue, sleep problems, or reduced mobility continue to affect everyday life.
Every sign above is quoted from the sofidex article on CHIK. If you are not sure, err upward — it is always reasonable to be checked.