Throat tablets are a common anti-inflammatory and laxative drug, which has good effects on laryngitis, tonsillitis, thrush and bad breath, etc. In addition, throat tablets are supplemented with the right amount of popping sugar, eucalyptus oil and other substances, which makes the mouth both sweet and delicious, and cool and comfortable. Some parents give them to their children as candy, which often becomes a new hidden disease. For example, peppermint throat tablets can constrict the mucosal blood vessels, weakening the mucosal resistance to disease, leading to oral ulcers; iodine throat tablets on the oral mucosa tissue irritation and corrosion is quite large; grass coral tablets can make the mouth dry. Especially in the case of no inflammation in the mouth, the antibacterial ingredients in these throat tablets will kill the beneficial bacteria in the mouth, resulting in harmful bacteria to take advantage of the opportunity to cause inflammation. Therefore, throat tablets are medicine, not candy, just give children to take harmful.