Hi there. What you are facing is a very common condition and scene in many young boys. It is definitely an allergy condition which you can term is allergic rhinitis. Medications can help you on a temporary basis but on a broader scale the best way to be safe is to avoid the allergen which in your case can be dust particles, cold, pollen grains etc. You must have been taking medications like Montek-LC, Allegra-M​ etc. What i would suggest is there is a injection available in the market whin has to be taken 3 times over 3 months. It helps a lot and will get rid of your cold n running nose.