Bloody noses can happen without warning (and probably should be reported to your doctor), but the majority of bloody noses have help, usually in the form of digital trauma. That simply means nose-picking. If your nose starts bleeding and you didn’t do something to traumatize it, tell the doctor. Otherwise, keep your fingers out of your nostrils. If you can’t, learn how to stop a bloody nose.

There’s nothing special about ​how to treat cut finger. You could use this first aid tip on a sliced nose, a split earlobe or a torn toe just as easily as a pinky finger. But when you do have blood dripping on the floor of your house it’s most likely coming from your digits. Thumbs, of course, are also included.

As far back as kindergarten, you had to know how to remove a splinter. From playground equipment to trees and debris, splinters are ubiquitous with growing up. But in case you missed some of the fine points, review how to do it right and help prevent an infection.

Even the most astute first aid instructor forgot to put first aid tips on how to stop diarrhea in the class. If you plan to travel outside your zip code, you might want to know how to battle the inevitable gastric somersaults you’re gonna feel. Not all rumbly tummies come from bad bugs, so you’ll likely need these tips at home, as well.

It stands to reason that if it’s coming out one end, it’s coming out the other. There’s not too much you can do for throwing up that isn’t fixed by finding the cause of nausea. However, every little bit helps. You really should know how to treat nausea.

You bathe and you shampoo your hair. There’s absolutely no chance you could get head lice, right? Wrong. Head lice love a clean head of hair—it’s where they live. The good news is that it’s not the end of the world. Head lice aren’t particularly dangerous—they’re just really gross. You need to know how to kill head lice.

Head lice aren’t the only critters that bite. There are millions of little biting bugs out there. Lots of them are in your house right now. Besides cut fingers, the most used first aid tip of all will be how to treat bug bites.

Touching the rack of a hot oven can really ruin the cookies. Luckily, you can pretty much handle the injury all by yourself. First, get off the computer and go put your finger under cold water. In 10 minutes, come back and check how to treat a burn.