Just wait.
Hot water is the enemy of every watch.
I don't take in the shower even my hardcore 1000m+ divers watches.
Cold water, no problem. Salt water, i tend to avoid it. Hot water or sauna, never!
Ridiculous. I've showered with every watch I've owned for over 30 years. Zero problems ever. None of those watches were anything but "water resistant." Also, you can't lump a sauna in with a shower. If you shower and it generates sauna level steam, you are wasting a huge amount of energy.