Yunnan Baiyao aerosol can not be used for the skin and mucous membranes have broken, pus, children with nosebleeds recommended timely consultation. Yunnan Baiyao aerosol is a topical drug that can be sprayed directly on the affected area to activate blood circulation and eliminate blood stasis, reduce swelling and relieve pain, and is used for bruises and injuries. However, it should be noted that the drug can not be used for the skin and mucous membranes have broken, pus, and allergic to drugs, allergic to alcohol people prohibited the use of this drug. If an adverse reaction occurs after the use of the drug, it is necessary to stop the drug in time and consult a doctor. Children with nosebleeds should consult a doctor to find out the cause of the bleeding, and if it is caused by acute or chronic nasal diseases or systemic diseases, then it needs to be treated in a timely manner.