Therapists that do Lymphatic Drainage know exactly how difficult and tedious this system is to treat with compression work. Cupping does the opposite.
Cupping stretches open, rather than closing the lymphatic vessels. This action actually increases the movement of lymph locally and systemically with cumulative treatments.
Increasing Lymphatic output increases the immunesystems ability to detoxify the body and respond to stressors put onto it from disease, chemicals, stress and electromagnetic fields.