Production method: Take 200ml of high-quality rice vinegar and put it in a cup, then wash 1 egg and put it in the vinegar. After 48 hours, the eggshell has been softened, leaving only a thin layer of leather bag wrapped in swollen eggs. Pick the skin with chopsticks and mix the egg white, egg yolk and vinegar evenly. Take vinegar egg solution 1 week later, take it on an empty stomach every morning 1 time, and take it with boiling water 2-3 times each time. It is best to add some honey before taking it and stir it evenly.