13 years old is generally not recommended to take adult cold medicine, it is recommended to consume children’s special cold medicine, specific medication is recommended to visit a physician to make a judgment. The 13-year-old is a minor, and the liver and kidney functions of minors are not well developed. Adult cold medicines have greater side effects, liver and kidney toxicity, and minors have more difficulty metabolizing such medicines, which can damage liver and kidney function. Adult cold and flu medicines mainly focus on fast efficacy, some cold and flu medicines contain amantadine, pseudoephedrine and other ingredients, which have an impact on the central nervous system development of minors. Minors are generally not allowed to take adult cold medicines when they have a cold because their body resistance is weak. If the instructions for adult cold medicine clearly state that minors can take a reduced dose, the medicine can be taken at the appropriate dosage under the guidance of a doctor. It is best to take cold medicines that are designed to treat minors. If you find that your child has a cold, you should go to the hospital and take the medication as prescribed by your doctor to avoid delays.