Sea lice bites are an itchy rash caused by jellyfish ... with a rash developing anywhere from a few minutes to 12 hours later. Without prompt treatment, the rash may worsen over time.

First thing's first. Sea lice aren't lice at all. They're tiny baby jellyfish, so small you can't even see them -- about the size of a grain of pepper. And just like their grownup counterparts ...

Much like with humans, high densities mean it is easier for ... Currently the most common treatment for salmon lice is harsh chemicals. Although this treatment has been effective in managing sea lice ...