The therapeutic method of cupping has been recorded since the Han Dynasty (206BC-220AD). Typically a small glass jar is applied to an area, creating a vacuum. The suction is lifting and stretching the fibers to reduce stagnation, swelling and pain. This releases the tension and brings in fresh circulation and nourishment. The discoloration of the skin is caused by the increased circulation. 
Afterwards, one has reduced pain and a greater range of motion.

Cupping is helpful for a variety of ailments: 

• Muscular aches, pains, swellings 
  

• Digestive issues 
  

• Gynecology discomforts
  

• Respiratory function increased