Hello, Thank you for your query The initial infection could have been a viral infection. The second infection is probably a bacterial one. This can occur in children as their immunity is still developing. I recommend: - adequate hydration. keep giving him sips of water throughout the day. he should pass light urine atleast 5 times a day. you may give soup, rice water, milk, tender coconut water, butter milk (room temperature). Please give him smaller but more frequent and bland, easily digestible meals. - fever meds appropriate for his weight, preferably paracetamol. - if he complain of throat pain or is unable to drink or eat, or fever persists more than 38.5 for 2 days, see his pediatrician for treatment with appropriate antibiotics. - steam inhalations ( luke warm baths - prefill bathroom with steam by running the hot water and closing the windows). keep him in there for 10 minutes. bathe him in luke warm water. this helps reduce temperature and loosen secretions. hydration is vital. please make sure of that. If he is weak or looks lethargic, follow your instincts and see a doctor right away. Hope this helps. hope he gets better soon.