Colds with generalized weakness and limb weakness are treated differently depending on the pathogen. Symptomatic supportive treatments such as rest and water are mostly given for common cold. Common cold is caused by upper respiratory tract infections and manifests itself in the form of nasal congestion, cough, runny nose, sneezing and other adverse symptoms. Most common colds are caused by viruses and are self-limiting. It can be treated by drinking plenty of water, keeping warm and avoiding exertion. The natural course of the disease does not exceed 1 week. Influenza has more severe symptoms, mostly characterized by high fever, generalized weakness and muscle pain. Antiviral treatment such as oseltamivir should be given as soon as possible after diagnosis. If you have a cold, you should go to the hospital in time to see a doctor who can give you the right treatment according to your condition. The above medications are recommended to be used under the guidance of a doctor to avoid self-medication.