Three-month-old babies sleep shaking head and scratching ears is considered to be hunger, eczema, lack of calcium, etc., to deal with the specific causes, such as on-time feeding, medication, etc.. 1. hunger: if the mother’s milk is not enough, the baby can not eat enough, so sleep is not stable, this time the baby is more irritable, may shake his head and scratch his ears, you can strengthen the baby’s feeding, if necessary, can be mixed formula feeding. 2. Eczema: If the baby has toddler eczema, there will be intense itching, will also sleep restlessly, often shaking the head and scratching the ears, the serious can use weak hormone ointment such as hydrocortisone cream, etc., for the parts of the skin infections, you can also choose mupirocin ointment. 3. Calcium and vitamin D deficiency: If the three-month-old baby is deficient in calcium and vitamin D, it will also be sleepy, shaking the head and scratching the ears, you can give the baby supplemental vitamin AD and calcium carbonate, etc., pay attention to take the baby outdoors to sunbathe. Three months old baby sleep shaking head and scratching ears suggest timely consultation, clear cause standardized treatment, the above drugs should be used in accordance with medical advice.