A muffled voice from a cold can usually heal itself in about 5 days, but the exact recovery time varies from person to person. A muffled voice from a cold is mainly due to acute laryngitis caused by viral or bacterial infections, i.e., congestion and edema of the mucous membranes of the vocal cords or throat, which manifests itself as hoarseness, and is more common in clinical practice. Cold-induced mute voice, most patients can drink more water, talk less and other measures to make the symptoms gradually reduced to self-healing, the time is generally no more than 1 week. It is important to note that acute laryngitis can easily lead to laryngeal edema, and in severe cases, even suffocation, so it is recommended that patients receive timely and standardized treatment to speed up the recovery of the voice, such as ensuring that the vocal cords have sufficient rest, and under the guidance of the doctor to carry out antiviral, antibiotic, nebulized inhalation of glucocorticosteroid therapy, as well as symptomatic supportive treatment, and so on. If you have a cold with a muffled voice, you should rest and avoid eating spicy and irritating foods. If necessary, you need to go to the hospital infection department or ear, nose and throat department for consultation, clear diagnosis and symptomatic treatment.