As long as the prescriptions are identified, prescribed and taken according to medical advice, there are usually no adverse reactions or toxic side effects. However, sometimes due to taking homemade creams, long-term overdose of creams, improper storage of creams, and overly nourishing prescription medication, adverse reactions and even toxic side effects may occur. Common adverse reactions are the following: 1, chest congestion and abdominal distension. Chest congestion and abdominal distension is the most common adverse reactions after taking the cream, usually poor spleen and stomach transport function, or ginseng, astragalus and other tonic drugs due to large dosage. In this case, you should temporarily stop taking the cream formula and take some drugs that regulate the qi and strengthen the spleen and promote the spleen and stomach’s function of transportation before you can continue taking the cream formula. And it should be noted that the amount of poultices should be reduced appropriately. 2. Loss of appetite. Loss of appetite after taking the cream formula indicates that the drug is greasy and hinders the stomach, affecting the digestive function of the recipient. Therefore, the dosage should be reduced or some digestive food or medicine should be added, such as hawthorn, chenpi tea, malt tea, hawthorn pill, etc. 3.Constipation. If constipation occurs after taking the cream, first of all, stop taking the cream, or reduce the dose of the cream, and at the same time increase dietary fiber in the diet, drink more water, exercise more, eat more fruits and vegetables, which can generally solve the problem of constipation. 4. Sore throat, or bleeding from the mouth and nose. This is due to too much warming and tonic medicine in the cream formula or too much power, must immediately stop taking the cream formula. For sore throat, use honeysuckle, wild chrysanthemum, fat sea, etc. to drink water; for nose and mouth bleeding, use white foxglove, honeysuckle, etc. to make water, serious cases need to go to the ear, nose and throat department. 5, itchy skin. Itchy skin is generally related to damp-heat, blood deficiency, wind and other factors, after taking the cream itchy skin, may be related to the cream to promote damp-heat, but also may be the recipient of the cream for the gum, deer horn gum, yam and other drugs allergic to cause, then you should suspend taking the cream, ask the doctor to find out the cause of treatment.