continued.. Taking a hot bath is one of the most popular and effective methods to help relieve arthritis pain and the best time to do this is just before going to bed, since arthritis pain is at its worst when we are inactive or sleeping. You can bathe in plain, hot water or you can add bubble bath or Epsom salts, which are known to help relieve joint pain. In some cases, arthritis sufferers enjoy adding ingredients like mud or eucalyptus leaf. It is critical to remain immersed in the hot water for a half hour while your muscles relax.