Tolterol patch is a topical drug mainly used to relieve bronchial asthma, chronic bronchitis, acute attacks of chronic bronchitis, chronic obstructive pulmonary emphysema and other diseases that cause airway obstruction and lead to symptoms such as wheezing, shortness of breath, and even dyspnea. This drug is a topical patch that can be applied to the chest, back, and upper buttocks skin. Some patients may have allergic reactions, chest tightness, palpitations, or even rashes when using the drug, which is prohibited. And it is prohibited for patients with hyperthyroidism, hypertension, diabetes and allergic dermatitis.