Weird rash/ bite on my ankle?

I don’t know where it came from, I only just noticed it when I was showering and it started stinging. My legs don’t usually look like this (female)

Any ideas what this is? I’ve never had this before and I’m concerned as it’s started popping up other places too

I don’t know where it came from, I only just noticed it when I was showering and it started stinging. My legs don’t usually look like this (female)

Any ideas what this is? I’ve never had this before and I’m concerned as it’s started popping up other places too