There is always phlegm in the throat after pregnancy, consider laryngitis or cold caused by, but during pregnancy can not take drugs indiscriminately, so as not to cause adverse effects on the fetus. You can reasonably use concentrated salt water gargle, can be anti-inflammatory sterilization, promote the recovery of the condition, eat more fresh vegetables, fruits, such as apples, pears, cabbage, celery, etc., it is best not to eat spicy and stimulating foods such as chili peppers, so as not to aggravate the symptoms of phlegm. If it is caused by colds, drink more boiled water, at the same time, it is recommended to drink pear water stewed with rock sugar, which can relieve cough and dissolve phlegm. If the symptoms of colds are serious, you can reasonably take Shuanghuanglian Oral Liquid and other proprietary medicines under the guidance of the doctor, and you can also take drugs such as amoxicillin, which will have little effect on the development of the fetus. During pregnancy, pay attention to indoor ventilation, keep the indoor air fresh, if the air is too dry need to use a humidifier, etc., on the recovery of the condition is very helpful.