Not Medical Advice: It will vary. As per Gothamtattoos.com, steam rooms/saunas are not a good idea while your new tattoo is healing. Steam and hot water open the pores of the skin and can result in loss of pigment.
Your body and new tattoo need time to heal before you soften the skin with both sweat and moisture.
Once your tattoo is fully healed, you can throw some steam on the rocks and enter the sauna. In doing so, you'll want to follow all sauna advisements, which are likely no more than ten minutes at a time in the bathhouse.
Caring for your new artwork is important since you want to avoid any infections, scarring or blotchiness. Here are some essential tips on caring for your gorgeous new tattoo and keep it looking healthy shared by Allwomenstalk.com.