Being diabetic, I wash my feet carefully and dry thoroughly including between the toes.
I’ve also had a slight uptick in facial acne, not that I’ve ever been entirely free, but usually zapzit, a Benzoyl Peroxide (10%) gel, gets rid of them in a day and I’ve got one below my lip that has persisted for four days now.
I’ve been over Covid for about a month now, but I’ve heard that it knocks your immune system down a bit and can allow other latent infections to bloom. I’ve also heard of covid toe though from what I’ve read it mostly affects the young. The bottom most picture on this page, https://www.aad.org/public/diseases/coronavirus/covid-toes does look very much like what I have. But I have tested negative for Covid-19 for about a month now.