Salt baths can place a lot of pressure on your circulatory system, so if you have poor heart circulation, heart disease, diabetes, or are pregnant, always check with your doctor first to be sure that you can safely take a salt bath. You can quickly become dehydrated while taking a salt bath. Make sure you have a glass or water bottle near the edge of the tub to sip from while you soak. Soaking in a salt bath can be intense for your circulatory system and your muscles, so spend no more than 30 minutes in the tub. Even after that short amount of time in the salt water, you will likely feel weak when you get out of the bath. When you're done, drain the tub and rise slowly. Hold onto something sturdy, like the edge of the sink, as you attempt to climb out. If you begin to feel dizzy, sit down immediately and sip some more water until you feel ready to stand again. The salt water is safe to leave on your skin, so no need to rinse yourself off or even wipe your whole body down with a towel. Use this drying time to rest for at least 30 minutes, since you will need some time to recover from the detox. It's best to take this bath right before bed so that you won't be doing any more physical activity for the day. Since Himalayan salt baths can be so intense, you should not be taking them every day. Start out by taking one a week, and then build up to two or three if you really like them.

Summary:
Ask your doctor if a Himalayan salt bath is safe for you. Keep a glass of water nearby. Soak for about 20-30 minutes. Stand up carefully. Rest while you air dry. Limit salt baths to 1-3 times per week.