Hello, Thanks for the query to H.C.M. Forum. Note down few symptoms as, Running nose, itching eyes, tears from eyes, sneezing, stuffy nose, cough , heaviness in head, mild rise of temperature. These all symptoms may be due to allergic bronchitis and known as asthmatics allergic bronchitis. If infection is added and severe allergy patient develops mucus which come out from nose and throat ( as in your case from nose). All these symptoms are due to bronchoconstriction due to allergy . Allergen may be dust, mite, pollen, hay , fine dusting powder, sudden fall and rise of temperature so if possible avoid these causative agents. Consult a physician and get his opinion. Antihistamine helps in such type of cases. Good luck. Dr. HET