Hello, Thanks for trusting Healthcaremagic! I have gone through your query and I can understand your concerns. Blocked nostrils are quite common in infants. Most often it is caused by some minor viral infections. You can instill saline nasal drops in both her nostrils for symptomatic relief. Paracetamol syrup can be given for fever and pain. Steroid nasal sprays can be tried in resistant cases under the supervision of a pediatrician. If symptoms persist despite all these,an ENT consultation might be needed to rule out condition like nasal polyps,deviated nasal septum and turbinate hypertrophy. Hope I have answered your query. Regards. Dr.Shinas Hussain