We usually dive in May and I get Pica Pica but my husband does not. If you happen to appeal to the little buggers, you itch and if you scratch, you itch even more. Nothing has been a relief for me. I scratch in my sleep. A friend coats himself in petroleum jelly, eco problem and very slippery. Lime juice only makes me feel sticky & itchy. Only someone who is adversly affected could really understand the misery that Pica Pica can cause, but not everyone is affected. Mesquitos love me too.