Chickenpox vaccination for four days children with a cold can take medicine. The susceptible population of chickenpox is mainly healthy children from 1 to 12 years old, and the vaccination is mainly used to prevent chickenpox, and it is recommended that adults and adolescents without a history of chickenpox should be vaccinated with chickenpox vaccine. Chickenpox vaccine is relatively safe, most people do not have a reaction, some may have a transient fever or mild rash within 6 to 18 days of vaccination, and in severe cases, anaphylactic shock and other symptoms can occur. Colds can be treated with medication after the varicella vaccine, and medication will not cross-react with the varicella vaccine, so it will not affect the effectiveness of the vaccine. Children’s colds are usually treated symptomatically, if the nose is runny, use sea salt water nasal spray to clear the nasal cavity, cough can be used to use aminobromine and other phlegm, if fever use ibuprofen to reduce fever, the above drugs will not affect the effectiveness of the varicella vaccine, you can rest assured that it can be used. However, if you have fever after chickenpox vaccine, you need to be alert to the adverse reactions after vaccine, it is recommended to take your child to the doctor in time, complete the examination, find the cause, and treat the cause of the disease. The above medication should be used in accordance with the doctor’s instructions.