Feeling phlegm in the throat is mainly considered to be caused by the stimulation of chronic pharyngitis. You can first pay attention to rest, drink more water, try to avoid talking more, you can also appropriately use honeysuckle, chrysanthemum to make water to drink. As it is during pregnancy, try not to use medication first. If there is fever, sore throat and more serious cases, you need to use effective antibacterial drugs to treat it. The more commonly used drugs are those with penicillin, or cephalosporins. As long as one is not allergic to these drugs, one can take these drugs first, which have almost no effect on the pregnant woman and the fetus. You can also use medicines to clear heat and remove fire, such as Shuang Huang Lian Oral Liquid.