No need to worry. As the child doesn't feel well so he is sleepy... with the medicines. Also give regular steam in a close room and pour nozzle drops.. also add some light food like porridge with ginger based tea(3-4 spoons.)

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more rest will help him for recover fast..dont worry.give him healthy foods nd juices as well..boiled water with tulsi leaves also helps..

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Due to medicine he will sleep as he is not well. Try home remedies nd give him steam . Avoid fried nd spicy food.