Hello, I suggest you take it: Yanyan tablet has the effects of nourishing yin and moistening lung, clearing away heat and toxic materials, clearing throat and relieving cough, and relieving itching. Can be use for treating dry throat, itchy throat and irritate cough caused by chronic pharyngitis. Oral. Five tablets at a time, three times a day. Avoid spicy and fishy food. After taking the medicine for 7 days, the symptoms have not improved, or other symptoms appear, so you should go to the hospital for treatment.