The ppd intradermal test is a tuberculin test that results in a strong positive result with blisters, indicating tuberculosis or possibly active tuberculosis, which should be further diagnosed and treated. In the tuberculin test, blisters on the patient’s localized skin indicate a strong positive, which is abnormal. In children, it is diagnostic of tuberculosis, while in adults it suggests that there may be active tuberculosis in the body. A combination of chest X-ray, blood tests, endoscopy and medical history is usually needed to confirm the diagnosis. If it is clear that TB is present, it can be treated with anti-tuberculosis drugs as prescribed by the doctor. Commonly used anti-tuberculosis drugs include isoniazid, rifampicin, pyrazinamide, ethambutol, streptomycin, etc. Patients should realize the principle of early, combined, appropriate amount, regularity, and whole course of medication, in order to promote the restoration of health of the organism. Most patients have a good prognosis after active treatment. For localized blisters, avoid stimulation by foreign objects or picking them with needles by oneself to prevent the occurrence of infection. It is recommended that patients do further detailed examination, in order to confirm the diagnosis of the disease and follow the doctor’s instructions, do not indiscriminate use of drugs or prescriptions, in order to prevent aggravation of the condition.