Hello dear, The symptoms as mentioned in your post can be attributed to acute exacerbation of asthma, secondary to bacterial infection. Asthma is caused due to broncho-constriction (obstruction of smaller airway passages) which is indicative of Hyper-responsiveness of air passages. Management includes: 1. Asthalin & Seroflo inhaler- provide symptomatic relief by causing broncho-dilation (dilating the smaller airway passages, relieving the obstruction & increasing airflow to lungs). So, you can use it whenever he is having an acute attack. 2. Analgesic antipyretic preparation (like crocin or ibugesic syrup) to control fever. 3. Antihistamine preparations like Allegra & Cough expectorant syrup for symptomatic relief. 4. A course of antibiotics needs to be taken to manage secondary bacterial attack. 5. Maintain adequate hydration & a healthy balance diet. 6. Also make sure that your son is well protected from cold, dust & other allergens. If still there is no improvement, kindly consult his treating Pediatrician/ Pulmonologist for further evaluation and management. Wishing him a good health. Take care.