Definition of Relation. A relation is a set of ordered pairs. This seems like an odd definition but weâll need it for the definition of a function (which is the main topic of this section).
Classic (Swedish) massage and Thai massage have been proven to relieve chronic lower back pain. Classic massage for lower back pain is a technique that relaxes muscles in the area through the application of pressure. The area is rubbed in the direction in which blood flows back to the heart. Thai massage, on the other hand, is a technique that pulls and stretches the area of the back and neck.
Best essential oils for back pain. The following essential oils can all be used to treat back pain naturally: Chamomile oil helps to control muscle spasms and has pain-relieving and anti-inflammatory properties. Lavender oil prevents muscle spasms and inflammation. It also helps to relieve tension, which may contribute to or worsen back pain.