Till now there is no substantiated proof from research centers or else, that sauna sessions can offer you a deep detox that eliminates heavy metals from your body. But for conditions like that you would anyhow like to see a more "traditional" doctor than sauna. Funny to mention, sauna is actually the most traditional doctor out there. It was used in folk medicine for thousands of years, with sauna building being just as sacred as temple. Birth was given in the sauna floor as well as before burial the dead were left there to wait their hour. This facility was the cleanest, and many cultures believed that there are spirits in the sauna.
Detoxification of the soul starts with detoxification of the body. Sweating is our body's natural reaction to temperature changes. But sweat also does flushes away all the junk from our body, as you ever noticed if you experienced flu or else. You lie there with fever, thinking this is the worst day of your life, and your sweat will stain white bed sheets yellow. The darker the yellow - the more toxins your body has. When we get sick, our body temperature rises not because it is hot outside, but because it promotes better healing while our blood vessels and our metabolism accelerated and our immune system gets a boost, producing more defense cells to fight the sickness.
So as you see sauna can be pretty good at eliminating toxins, since it makes your heart beat faster and heats your body. You should always resume the amount of water that you lose in the steaming room, while not doing so can lead you to dehydration. Also try to use some help in the sauna like sea salt with oils, sugar scrubs, masks or even raw honey. You will be amazed how much better your normal beauty remedies will work in combination with sauna.
Sauna can actually help you with detox, if you use it as a part of therapy. A lot of different remedies together work a lot better than just one. Sauna also reduces stress, acne and insomnia and can be you best friend when it comes to relaxation.