Hello @Pranoti Ingale and welcome to the community! A runny nose is a sign of allergies. Other symptoms for allergies can be an itchy nose or eyes, sneezing, rashes, cough, chest tightness, among others. Allergens are the most common asthma trigger , this is called allergic asthma . Your doctor can diagnose you with allergic asthma by performing an exam, talking about your medical and family history, and/or performing allergy testing . The best way to avoid allergic reactions is by avoiding...