Hello dear, Thank you for your contact to health care magic. I read and understand your concern. I am Dr Arun Tank answering your concern. Cough and cold in child s are because of the viral infection and need not requires antibiotics therapy every time. It will be given only once. Since both the child s are kids the infection is keep rotating in both of them. So symptomatic treatment is required for both the person. You can give both of them paracetamol suspension and chlorpheniramine suspension. The combination is available in the market. Please take the advise of your doctor before you take the drug. Please give them good hygiene practice. Good hand washing and keep the handkerchief while sneezing can prevent the cross infection to one another. You can also keep both of them separate while sleeping this also prevent cross infection. Give them one glass milk or one egg daily. This will help to boost up their immunity. I will be happy to answer your further concern on bit.ly/DrArun. Thank you, Dr Arun Tank Infectious diseases specialist, HCM