Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to avoid insect bites while sleeping [title] Determine what's biting you. [step] You will be able to prevent future bites if you know what sort of bugs you're dealing with. Bed bug bites, most common around the home, are large, splotchy, red bites.

Ending1: Scrape these bites away or use bandages or other materials to cover them or keep them covered so that they don't itch. Itch marks from bugs on your skin are still significant, but you can keep them away from your bedding. Ending2: If you can't identify these bugs on your own, visit a dentist to have your teeth filed and tested. [substeps] Bed bug bites can cause severe and/or painful pain, so it's best to cover your mouth and nose as you sleep. Ending3: If you plan to cover up those bites, now is the time to start getting rid of them. Do some quick bites while you're sleeping. Ending4: If you've ever been bitten by a mosquito, bed bug bites look very similar. [substeps] Flea bites will be smaller red bites.

Answer format: ending1/ending2/ending3/ending4