Tennis balls act like foam rollers and can be useful in relieving lower back pain. Massaging the lower back with tennis balls can help loosen soft tissues, release tension, relieve entrapped nerves, and improve flexibility. Massage therapy for the lower back can help relieve pain and increase blood flow.
Secondly, how do you massage the back of a tennis ball?

Likewise, people ask, how do tennis balls help neck pain?
Use two tennis balls inside of a sock tied tightly or taped together so that tennis balls do not move. Place the tennis balls at the base of the skull or back of the neck and simply press into them until desired release is achieved. Lying face up on the floor often provides the ideal position for relief.
How do you Untrap your sciatic nerve?
How should I lay with sciatica?
Lie flat on your back and keep your buttocks and heels in contact with the bed. Bend your knees slightly towards the ceiling. Slide a pillow under your knees. Slowly add additional pillows until you find a comfortable knee and lower back position.