A dry cough, coughing, amoxicillin does not work, it may be that the drugs have not yet obvious effect, or the use of medication is not symptomatic, etc., you need to find the cause of the disease, according to the cause of the treatment. There are many causes of dry cough, may be bacterial, viral infection or mycoplasma infection caused by upper respiratory tract infection symptoms, but also may be allergies, chronic pharyngitis and other causes. Before using drugs should be clearly diagnosed, targeted selection of drugs, in order to prevent blind use of drugs can not play a role, and even lead to aggravation of the condition. Bacterial infections caused by bronchitis, pneumonia patients may be manifested as a dry cough, cough and amoxicillin will generally have an effect, if just take the drug for about 1 day, because the drug has not yet been significantly effective, dry cough symptoms can be no significant relief, feel to eat cough cough, amoxicillin does not work, it is recommended to continue to take the medication, such as the drug is still ineffective for 3 days, the medication should be discontinued and seek medical attention in a timely manner. If the cough is caused by other reasons, you should not blindly take cough medicine and amoxicillin. If the dry cough is caused by allergies, you need to take anti-allergy drugs, such as loratadine and clopidogrel. If the upper respiratory tract infection is caused by a viral infection, you need to use antiviral drugs, such as ribavirin, and you can also use Pulsatilla Oral Liquid or Scutellaria Oral Liquid for treatment. If it is a mycoplasma infection, it needs to be treated with drugs such as erythromycin and azithromycin. Therefore, when the symptoms of dry cough appear, we should first investigate the cause of the disease, and then treat it, and should not abuse the drugs by oneself. The above drugs need to be used under the guidance of a physician.