Weird 1-ever seen an ankle sprain make skin turn tan and peel 4 weeks later? (no not sunburn) fell down stairs, ankles were wrapped during sun exposur

Yes: As with a cast, skin can peel if it has been wrapped continuously. Normally, the skin sheds a little at a time. With a continuous cover, that doesn't happen. When the cover is removed (cast, wrap), the skin makes up for lost time. Next time, remove the wrap regularly and wash with a wash cloth.

No unusual: The wrapping along with swelling of tye ankle can cause discoloration of the skin. When swelling goes down the skin tends to peel/slough.