My child is suffering from cold I had given him maxtra 5ml but was not get cured so local Dr gave monticope but then his voice started changing due to cold cough so I stopped that and again gave him maxtra but now he si unable to sleep as unable of breath properly due to cold and his head is also hot I have chest on cold tabet now with me he is4.5 yes old can I give him half or 1/4 tablet will be feel better by giving it please help