A trip to the beach may leave you with an itchy rash as people are reporting cases of sea lice after a dip in waters off the Florida panhandle.

Those affected experience an itchy, irritated rash — often with bumps and welts.

In serious cases, people can experience flu-like symptoms such as fever, headache, chills and nausea.

On Monday, lifeguards in Pensacola reported mild cases of sea lice and hoisted purple flags to warn beachgoers, according to WEAR.

So what is sea lice and how can you avoid it?

Sea lice, despite the name, is not actually lice. It's a rash caused by miniature larvae of marine life — like jellyfish or sea anemones. The term sea lice refers to the condition caused by the larvae stings, also called "Sea Bather's Eruption."

Read more from WESH's website.