Both common cold and influenza can cause a lack of taste in the mouth when you have a cold. Common cold is mostly caused by viral infections such as adenovirus, coronavirus, rhinovirus, etc. The disease has a more acute onset and is mainly characterized by nasal symptoms such as nasal congestion, watery nasal discharge, sneezing, etc. It can also be accompanied by delayed sensation of taste, headache, tearfulness, and other clinical manifestations. Influenza is caused by the influenza virus and is characterized by fever, generalized body aches, malaise, and other symptoms. Nasopharyngeal symptoms are mild and may be accompanied by loss of appetite. Although the upper respiratory tract symptoms are mild, high fever can reduce enzyme function, resulting in symptoms such as taste disorders. Clinical measures for the common cold are mainly based on general treatment, including drinking plenty of water, pay attention to rest, quit smoking, keep indoor air circulation, etc., and if necessary, you can give phenmetrazine, cotrimoxazole and other drugs. Influenza requires early use of antiviral drugs such as oseltamivir, and if fever is high, antipyretic and analgesic drugs such as acetaminophen can be given for relief. Taste disorder can also be caused by other diseases, if the symptoms do not get better or worse, it is recommended to go to the hospital as soon as possible, follow the doctor’s instructions for standardized treatment.