Allergic reactions to Compound Danshen Dropping Pills are recommended to stop taking the medication. If allergic reactions such as rash and itching occur, they will usually disappear after stopping the medicine. If the allergic symptoms worsen after stopping the medicine, it is recommended to go to the dermatology department and take anti-allergic medication after consulting the doctor. The ingredients of Compound Danshen Dropping Pills are Salvia miltiorrhiza, Panax quinquefolii and ice chips. It has the effects of activating blood circulation and removing blood stasis (promoting blood circulation and eliminating blood stasis in the body), regulating qi and relieving pain (relieving pain by unblocking qi). It is used for chest paralysis (chest tightness and pain) caused by qi stagnation and blood stasis (blood stagnation due to unobstructed flow of qi), with chest tightness and stabbing pain in the precordial region; angina pectoris of coronary heart disease with the above symptoms. Adverse reactions include: gastrointestinal discomfort, dyspepsia, belching (hiccups), acid reflux, eructation (hiccups), nausea, vomiting, flatulence, stomach ache, abdominal distension, diarrhea, abdominal pain, abdominal discomfort; skin rashes, itching, flushing; dizziness, headache, etc.; palpitations (rapid heartbeat, often accompanied by heartburn), chest tightness, and elevated blood pressure.