In order to properly enjoy a sauna session, a few important hints should be strictly considered.

Showers

To start with, you should take a longish shower, and shower gel or soap used thereby should be properly rinsed off. Thus, your skin will be cleansed of  crèmes or oil and is in better position to sweat later on as your pores are clear. Dry your skin thoroughly and proceed to the sauna room next.

Note:
Do take off jewellery and watches, as metals can get quite hot and could cause burns on your skin. Plastic parts could melt and also cause injuries of the skin.

Sauna Session

Temperatures in a sauna cabin are between about 70 and 100°C. It should be considered that the very dry, warm air will rise and reach its highest temperature there. Any particular sauna session should last about 10 minutes on average, but as for time, your personal well-being is of course the most important factor.
In all public saunas you sit or lie on your own bath towel for reasons of hygiene. Averagely, two sauna sessions per visit  to a sauna are being done.

Douse

In order to enhance the sweating or help their health with aroma therapy, sauna-goers will douse the hot stones during a sauna session. Thereby, water (maybe with an addition of essential oils) is sprinkled on hot stones to extremely increase the humidity of air.

Rests

After a sauna session, the body is cooled down by a cool shower. Here, the rules of  Kneipp should be observed. Hard-boiled sauna-users will use the so-called cooling-down pool after that. Dry your body thoroughly and enjoy a rest: Thus use a warm blanket and relax in lying down.