1, suitable for people: suffering from chronic whistling system diseases that develop or worsen in autumn and winter, such as recurrent colds, chronic bronchitis, bronchial asthma, chronic obstructive pulmonary disease, etc., belong to the cold evidence and deficiency evidence of better results. 2. Precautions: (1) The duration of each application is 1-4 hours, depending on the patient’s adaptation, and the patch can be removed when there is local heat pain or burning sensation. (2) If small blisters and light brown pigmentation appear on the local skin after applying the patch, it is normal to pay attention to protect the wound surface and avoid infection caused by scratching. (3) Do not take a bath within 5 hours after applying the patch; bathing with warm water is appropriate and local scrubbing should not be used. (4) Avoid being in the cold air-conditioned environment during the whole period of dressing; avoid eating cold, spicy, fatty, fried, seafood, shrimp and other hairy things and cold drinks to avoid affecting the healing effect. 3, not suitable for people: cold, chronic cough and asthma acute attacker; skin allergy; pregnancy, maternity, old and weak in the person; often repeated cough yellow pus sputum or hemoptysis, and other bleeding patients.