La Roche Posay Triple Repair (the drugstore version) is really good and not too pricey, it’s like it both sinks in and leaves a slight protective layer; and the Ciclaplast if you need immediate help with healing. If you are very sensitized and everything is bothering you you can also try just putting a very thin layer of coconut oil all over you while you are still a little damp after shower, assuming you aren’t allergic.
The sunscreen IUNIK Centella Calming Sunscreen is good too, not irritating and very effective as a sunscreen.
I hate dry air so much. Live in a humid sea level place and occasionally have to travel to dry altitude and it’s so shocking, my nose bleeds even. Hopefully you can get your skin calmed down and get ahead of it.
Some thoughts: In a dry place, humectants can work the opposite way, pulling moisture from your skin or hair out into the air, or from deeper layers of your skin out to the surface so you may need something more occlusive; and when my skin is feeling sensitive, mechanical exfoliating (,like your loofa) always makes it worse, but chemical exfoliation (like a toner with glycolic acid) usually no problem.