Hi., I can understand your concern. It can be due to infection.
Next Steps
She can take
tab. montek lc at night after food for 5 days
tab. dolo 650, 2 times a day after food for 3 days.
syrup. ambrolite s 5 ml 2 times for 5 days after food.
Health Tips
Plan for CBC with ESR,
crp, d dimer, covid RT PCR, widal test for better understanding.