When you feel phlegm in your throat when you sing, it is mainly caused by chronic inflammatory stimuli, such as smoking or frequent exposure to irritating gases, eating spicy food or using your voice excessively can cause chronic pharyngitis. This time is the need to pay attention to rest, avoid talking loudly, also try not to sing first, you can first use fat sea, honeysuckle, wood butterfly, dendrobium and other drugs to drink water, but also can take oral pharyngeal drops, slow Yan Shu Lime, also need to pay attention to rest, prevent colds. If the symptoms are more serious, with swollen and sore throat and increased sputum, you also need to take effective oral antibacterial drugs and cough and phlegm medicines, you can use amoxicillin, cephalosporin antibacterial drugs, also can use fresh bamboo leech, acute syrup and other drugs to stop cough and phlegm.