The moist heat opens up pores and allows toxins to exit the body while also loosening the lungs.
Many world class spas have these facilities available for their guests to use during their stay at the spa.
I have worked in a few different spas and visited many. The steam rooms and saunas are different in the senses chosen and physical appearance but the attire is always the same, a simple towel, bathing suit or nothing at all.
Of course you will want to take a towel with you to sit on or lay on but it is not necessary to stay wrapped up in it once inside. At first this is a foreign environment but if you stick it out long enough you may allow yourself enough time to actually relax.
Upon my first few visits to the spa I was shy and uncomfortable and then the thought came to me, “when in Rome do what the Romans do”.
Why should this not apply here as well? After all were the Romans not wise in creating the Roman baths? They did have some wonderful ideas that deserve to be recognized.
If you head straight to the steam room or sauna there is no need to shower off before entering as long as you stay on your towel.
However, please remember out of respect for the kind people that will be pampering you always make sure to shower off prior to any spa services.