If a child has a muffled voice after crying, most will heal within 3-5 days. A muffled voice is often caused by edema of the throat due to intense crying, which results in poor vocalization and a muffled voice. But if parents treat their child in time, the recovery will be a little faster and shorter. Parents can use the following ways to deal with it, firstly, give the child more warm boiled water to drink, through warm boiled water supplementation, it can flush out the edema of the throat. Secondly, you can give the child to take heat-clearing and detoxifying proprietary Chinese medicines, such as Pu Di Lan Anti-inflammatory Oral Liquid, Blue Scutellaria Oral Liquid and so on, both of which have the effect of clearing heat and detoxifying, and benefit the throat, and have an obvious alleviating effect on the edema in the throat, which can alleviate the symptom of the child’s mute voice, and most of them can shorten the course of the disease.