Ultrasound examination of enlarged lymph nodes ate three boxes of Amoxicillin Clavulanate Potassium Powder still do not see any improvement, this situation, we recommend that patients immediately stop taking the drug, after stopping the drug to go to the hospital for a detailed examination of the cause of the enlarged lymph nodes, on the appropriate medication or surgical treatment and so on. Amoxicillin Clavulanate Potassium Powder is mainly used for the treatment of lymphadenitis caused by bacterial infection. Therefore, for acute lymph node enlargement due to bacterial infection, then taking Amoxicillin Clavulanate Potassium Powder is effective. There are many reasons for the appearance of enlarged lymph nodes, in addition to acute lymphadenitis due to bacterial infection, there are also cases such as: viral infectious lymphadenitis, lymphatic tuberculosis, lymphatic metastasis of malignant tumors, lymphoma, tissue hyperplasia and so on. At this time, treatment with amoxicillin ketate powder is not effective. In addition, chronic lymphadenitis caused by bacterial infections, due to the long treatment time, only three boxes of Amoxicillin Ketate Potassium Powder may not have a significant effect. When a patient is examined for enlarged lymph nodes, the diagnosis should be clarified and correct treatment should be given accordingly. In addition to the above, when treatment with Amoxicillin Ketate Potassium Powder is not effective after a period of time, a new diagnosis is needed to decide on the next step of treatment.