Respected user , Hi Thanks for using Healthcaremagic.com I have evaluated your query thoroughly . * This is due to bronchospasm caused by bronchitis giving rattling sound . * Additional suggestions for better recovery - Continue all medicines as per pediatrician advise . - Give balanced nutritious diet with plenty of liquids to maintain hydration - Maintain room temperature . - Avoid exposure to excess cold . - Avoid all dairy products , excess sugar , sweets , ghee , cheese . - Keep watch on urine output and fever . Hope this clears your query . Welcome for further guidance . Regards dear take care .