70 days of occasional dry heaving and coughing may be caused by improper feeding or indigestion, etc. The treatment includes vertical holding and burping, abdominal massage and medication, etc., in accordance with the doctor’s instructions for treatment. 1. Improper feeding: If the baby is not fed properly, the baby will inhale a lot of air into the body when eating milk, which may cause the baby to have dry retching and coughing. Parents can hold the baby upright and gently pat the baby’s back with their hands, thus relieving the symptoms of dry heaving and coughing. 2. Indigestion: The digestive system of a 70-day-old baby is not yet fully developed, and overfeeding or catching a cold in the abdomen may lead to indigestion, which may cause the baby to occasionally dry heaves and coughs. Parents can gently massage the baby’s abdomen to promote intestinal peristalsis, and if necessary, take probiotics (such as Bacillus subtilis bacillus granules) to improve the symptoms. Occasional dry heaving and coughing in 70-day-old babies may also have other causes, and it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy.