Most often respiratory tract infection in children is caused due to certain viral infections. Most often such infections are associated with allergic reactions. Giving some antiallergic like cetirizine syrup for a few days should help in relieving the problem. Alongside, giving steam inhalation should provide relief. Water in the form of vapor reaches deep into the lungs and helps in diluting the cough and provides relief by diluting the cough. If the child is still developing wheezing or rapid respiration, visiting the ER without delay should be a good idea.