Pregnant women with itchy throat all night dry cough, may be allergic laryngitis, chronic pharyngitis, reflux laryngitis, etc., need to target to take care of life, if it is difficult to alleviate the need to consult a doctor in a timely manner. 1. Allergic pharyngolaryngitis: may be caused by contact with allergens, such as indoor pollen, dust mites or cigarette smoke, can easily lead to allergic pharyngolaryngitis attack, need to stay away from allergens, the general symptoms will be relieved, and often open the window to ventilate. 2. Chronic pharyngitis: most of them are caused by bad habits and environmental stimuli, we should pay attention to improve the environment, avoid eating spicy and stimulating food, if the indoor air is too dry, you can use a humidifier. 3. reflux pharyngitis: mainly because of the stomach contents reflux to the throat area, to lift not caused by their own symptoms to pay attention to, eat small meals, especially before going to bed at night, to avoid eating too much, sleep can be the pillow properly elevated. Pregnant women with itchy throat all night dry cough, if the symptoms continue to be unrelieved, should promptly consult a doctor, clear causes with the doctor to deal with the treatment, not unauthorized use of medication.