Fever of 102°F with cough and phlegm since yesterday is most likely an acute viral respiratory infection. Paracetamol helps bring the fever down temporarily but it will fluctuate â this is normal with viral fevers. Rest, adequate fluids, and steam inhalation for the phlegm are the key measures at this stage.
Next Steps
If fever persists beyond 3-4 days, rises above 103°F, or breathing becomes difficult, get a CBC and chest X-ray done and consult a doctor. Please consult me directly on Practo for a detailed evaluation.