Does Sanfutie have any side effects?

Sanfutie is more effective in treating symptoms such as yang deficiency, lung weakness, and yin deficiency, internal heat and pain in summer, especially respiratory diseases, bronchitis, asthma, knee joint pain, frostbite and other cold diseases that are common in winter. However, "Sanfutie" is not suitable for everyone. So does Sanfutie have any side effects? What are the key side effects?

1. Sanfutie may cause drug allergy

Patients who are allergic to drugs often experience local redness and itching of the skin when applying Sanfu plaster, followed by macules or urticaria all over the body. If the allergic condition is more serious, symptoms such as panic, chest tightness and shortness of breath may occur. Drug allergy usually occurs after the first application. Sometimes it may not occur on the first application but may appear after multiple applications. It usually occurs a few minutes to hours after application.

2. Sanfutie will cause blisters at the application site

Sanfutie must not be applied for a long time. If it is applied for a long time, it may cause blisters on the skin. Although traditional Chinese medicine believes that blistering is a polyurethane foam treatment. However, due to the high temperature weather nowadays, if the blisters are not properly cared for, the skin may be damaged and infected. Therefore, plasters with less irritation are used during production to reduce the occurrence of blistering.

3. Sanfutie may cause allergic contact dermatitis

It usually does not occur when the medicine is applied for the first time, but often occurs after the medicine is applied again. The main symptom is that 6 to 12 hours after the application, erythema appears at the site where the patient applied the medicine, and it gradually thickens, making it higher than the surrounding skin, and the boundary with the surrounding skin is very clear. If not properly treated, blisters will gradually form, and then slowly erode and exude. At this time, the patient may feel itching of the skin around the wound.