Relieves occasional constipation (irregularity). Generally produces bowel movement in 1/2 to 6 hours. Epsom salt is a trusted remedy that is useful every season of the year. Beat winter blues. Simply dissolve two cups of epsom salt in a warm bath to: provide soothing relief from arthritic pain; reduce stiffness and soreness in joints; warm and comfort your muscle aches. A mineral spring spa. Springtime is your fresh start to working out, often times leading to overexertion. Just dissolve two cups of epsom salt in warm bath water, settle in, and experience the relief and relaxation. First aid summer salts. Dissolve two cups of epsom salt in two cups hot water to make a compress. Relax into autumn. By dissolving two cups of epsom salt in a gallon of warm water, you'll be able to: soak away tiredness and soreness; soothe away stress.