If a child has a persistent cough that does not stop in the middle, there are several possibilities and treatment should be based on the cause in order to be effective: 1. Foreign body in the trachea, which is a sudden and continuous cough that often occurs when eating peanuts or getting high on melon seeds, etc. and requires urgent medical attention. 2. Central cough, which is relatively rare, can be treated orally with some central cough medicines, such as dextromethorphan syrup, which is effective for coughs caused by stimulation of the brain center. The cough has a very good effect. You should be careful not to expose your child to mental stimulation and not to reprimand your child too often. When a child is stressed or sad, it is likely to cause a central cough. This can be treated synergistically with some neuroregulatory drugs, such as vitamin B1 and vitamin B12.3. For irritating coughs caused by allergies, the child may have an itchy throat and the cough medicine can be Huifenesin. It is recommended to also take some oral anti-allergy drugs, such as loratadine granules, which are very effective in improving allergic cough. 4. Continuous cough caused by mycoplasma infection, mostly dry cough, can be treated with azithromycin to control the infection, along with nebulized inhalation and cough and phlegm medication, such as aminoglutethimide oral solution.