Lymphatic vessel blockage can be caused by bacterial and viral infections, tumor factors and parasitic infections, etc. It can be treated by anti-infection, radiotherapy and surgery. 1. Bacterial and viral infections: If there are more bacteria or viruses in the body, it may lead to blockage of lymphatic vessels, which can be treated by using appropriate antibiotics such as penicillin, cefuroxime or antiviral drugs such as ribavirin, acyclovir and other antiviral drugs. 2. Tumor factor: If the tumor has lymph node metastasis, it may lead to lymphatic vessel obstruction, which can be relieved by treating the primary tumor through surgery, radiotherapy and chemotherapy. 3. Parasitic infections: such as filariasis, which can be treated through the use of etanercept for filariasis, physical therapy such as radiant heat or microwave heat, and surgery if necessary. If lymphatic obstruction occurs, you should seek medical treatment in time, and the relevant drugs should be used under the guidance of a doctor.