I don't have either problem folks, but I do have brittle skin on my feet. It makes shoes and socks difficult to wear. I'm only REALLY comfortable in Fly Flot mules.Which are MAGIC!!!!!
If I do need socks, I now buy silk Toe socks rom TOETOE online. Not cheap [actually fairly pricey,], but it works for me. I just wish they made other colours than black. They do wool and cotton and a few synthetic socks too. I like their wool walking socks. They go well with my hiking boots and the cotton ones , which are almost as bulky, go into winter shoes.
Have a look at the website.
I'm not associated with this company, but they do solve my foot problems.
Hana