ive recently started taking creatine but also love to relax in the sauna after a good workout, if the creatine holds water in the body I take it I should NOT be using the sauna as that sweats out the bodys stored water???
Think you are overthinking it. Just keep hydrated and don’t go in the sauna too soon before sessions. Doubt it will cause any issue as long as you eat and hydrate well.
You take 2-3 g per day. Solubility of Creatine is 17 g/l, which means if you take in ~180 ml of water with your 3 g of creatine, you have absolutely nothing to worry about.