What should I do if my three-month-old baby keeps shaking his head in his sleep?

Three-month-old baby sleep always shaking head, may be normal physiological, may also be calcium deficiency, eczema and other discomforts, if the lack of calcium need to supplement vitamin D or calcium, eczema need to use moisturizers and other topical creams.
1. Normal physiological, babies always like to be shaken after birth will make them feel safe, so most of the time shaking their heads is a kind of self-soothing, in addition to learning to express themselves verbally before the baby commonly used body language to express their own emotions, and need to pay attention to parents to soothe.
2. Calcium deficiency: if the baby also love sweating, easy to sleep, no regular vitamin D, often shaking the head may be a lack of vitamin D or calcium caused by the cerebral cortex excitability increased due to the need to children’s health department for bone density and trace element examination, regular supplementation of vitamin D, and appropriate increase in outdoor activities to improve.
3. Eczema: Eczema appears in the baby’s head and face, rear occiput, neck, will produce itchy feeling, the baby will shake his head to relieve the itchy feeling of local skin. Parents need to reduce the baby clothes, avoid overheating, combined with complementary feeding situation to determine whether there is allergy, strengthen the skin moisturizing, if necessary, see a doctor under the guidance of a physician to use hydrocortisone butyrate cream and other medications for external treatment.