Dizziness after taking cold medicine is a relatively common phenomenon of adverse reactions to cold medicine, which is due to the fact that most cold medicine contains chlorpheniramine maleate, because this drug has a certain sedative, central inhibitory effect, so patients can appear drowsy, sleepy, dizzy performance, with the recovery of the disease, cold medicine can be discontinued on its own, no need to use special treatment. If the symptoms of dizziness are obvious, it is recommended to take more rest and drink more water to promote metabolism, or to stop using cold medicine and choose anti-infective drugs for treatment. Patients with viral colds can choose antiviral treatment such as oseltamivir, and if combined with bacterial infections can choose cephalosporins and penicillin antibiotics.