<s>[INST] hello!my query is regarding my 3yr old son... he recently suffered from lower respiratory tract infection due to which he had high grade fever and was hospitalized for 2 days. doctor says it was mainly due to dust allergy and is unavoidable since we reside in an area where lots of  construction work is going on (kharghar, navi mumbai) so what can i do to minimize this to reoccur [/INST] Hello, To prevent recurrent lung infections due to dust allergy, you may do the following things. 1. Use an air purifier in the home.2. Always give a mask to your son whenever he is outside home.3. Give him regular respiratory vaccines like influenza (yearly) and pneumococcal (5 yearly).4. Warm water gargles and steam inhalation 4-5 times a day. Don't worry with above practice his chances of recurrent lung infections reduce significantly. Hope I have answered your query. Let me know if I can assist you further.  </s>