Lymph node tuberculosis requires a skin test. Patients with lymph node tuberculosis need to undergo a PPD skin test, which is also known as a tuberculin test, is an intradermal test that is performed by injecting tuberculin intradermally and diagnosing a type IV hypersensitivity reaction due to Mycobacterium tuberculosis infection based on the condition of the skin at the injection site. Patients with lymph node tuberculosis have a positive or strong positive skin test. Generally, for patients with lymph node tuberculosis, anti-tuberculosis drug treatment can be carried out on the basis of strengthening nutritional intake and improving immunity in daily diet, and the first-line anti-tuberculosis drugs commonly used in clinic are isoniazid, rifampicin, streptomycin, ethambutol, etc. The second-line anti-tuberculosis drugs include levofloxacin, kanamycin, ethylthioisonicotinicotinicotinicotinicotinicotinicotinicotinic acid and so on. In case of abnormal skin test results, it is recommended to consult a doctor in time to clarify the cause of the disease with the help of the doctor and carry out targeted treatment or therapy.