How to quickly cure a cold. It should be correctly recognized that a cold is usually a respiratory inflammatory reaction caused by common viral infections such as influenza viruses or parainfluenza viruses. Recovery from the illness takes time, and symptoms can only be alleviated temporarily through medication. Generally, it takes about three to seven days for a complete recovery. If symptoms include fever or headache, medications such as aminopyrine or aspirin can be taken. If symptoms include coughing or a runny nose, bromhexine hydrochloride tablets or nasal decongestant tablets can be used for symptomatic treatment. All the above medications should be taken under the guidance of a doctor.