If a child has a very thick tongue, the following cleaning methods can be used: 1, you can use a small towel to wipe the tongue, if the thick tongue is due to milk residue caused by eating milk, seen in younger children, mainly drinking milk, parents can use a small towel dipped in a little water, gently wipe the tongue, most of them can slowly subside; 2, you can apply anti-food and stagnation drugs to regulate, if the thick tongue belongs to indigestion If the thick tongue is caused by indigestion, often accompanied by bad breath and undigested milk flaps or food in the stool, you can apply Wang’s Bao Chi Wan or Bao He Wan to deal with it; 3, if it is caused by very heavy dampness in the body, in this case, you should apply some dampness-transforming drugs to deal with it, such as the application of patchouli or the application of barley to dispel dampness.