If you have phlegm in your throat and your throat is hoarse, it is usually due to upper respiratory tract infection, which can be treated with anti-inflammatory, cough suppressant and phlegm treatment, such as some traditional Chinese medicines like honey-refined Chuanbei loquat extract, lung power cough and so on. If the cold is accompanied by nasal congestion and runny nose, you can add some cold medicine, like Neocontrol and so on. You should pay attention to a light diet, do not eat spicy and stimulating food, drink more water, avoid fatigue, speak as little as possible, you can also use the fat sea to drink water, all have certain curative effect. If the symptoms do not improve, you need to go to the hospital to see if there are other diseases of the throat or lungs, you can do further tests to clarify.