Loss of smell after a cold is a common symptom of colds, and there is no question of whether it is normal or not. Colds are usually triggered by rain, cold and overwork, and are viral infections. When the virus invades the nasal mucosa, the sense of smell may be lost, which is a common symptom after a cold, and may be accompanied by nasal congestion, runny nose, fever, headache, cough and other symptoms. After a cold, it is necessary to pay attention to rest, maintain sufficient sleep and dietary regulation, increase the intake of high quality protein, avoid spicy stimulation, cold and other foods will help the recovery of cold. If there is any discomfort, it is recommended to treat it under the guidance of a physician or pharmacist to avoid aggravating the condition and inducing other diseases.