Summarize the following:
While there is no scientific consensus, some research indicates tea tree oil and other natural oils may kill head lice. You can buy tea tree oil at a local health shop or order it online. See if it works at treating head lice. Some people are allergic to tea tree oil and will have a lot of skin redness or irritation if used. Talk to your doctor before trying tea tree oil. Or, you can apply a small amount to your arm for a few days to look for an allergic reaction. Be especially careful if using on a child. Before bed, sprinkle a few drops of tea tree oil on your scalp. Put a towel on your pillow and go to sleep, leaving the oil in overnight. In the morning, comb your hair to remove any dead lice or eggs. Then, wash and condition your hair. If possible, use shampoo and conditioner that contains tea tree oil. Look for a minimum concentration of 2% tea tree oil. Repeat as necessary. The process may take a few tries before it works. Some research indicates some natural plant oils may be toxic to head lice. However, scientific research is limited and not conclusive. Lavender oil, anise oil, ylang ylang oil, and nerolidol all may work at removing head lice. You can order these oils online or can find them in some drug or health food stores. Use with caution, however, as essential oils are not required to meet FDA safety regulations. Keep in mind many essential oils need to be diluted in a carrier oil, like olive oil, before use. Read the label of any oils you purchase for instructions on safe use. As with tea tree oil, use these oils with caution, especially with children. Talk to your doctor before using essential oils to treat head lice. Many household products can supposedly kill head lice by depriving lice and eggs from air. This can smother lice and eggs but there is little clinical evidence of the effectiveness of these treatments. Olive oil, mayonnaise, petroleum jelly, and butter are all suggested smothering agents to treat head lice. You would apply one of these products to your hair, cover with a shower cap or hair net, and leave in overnight. Wash out in the morning and see if you notice any results.

summary: Try tea tree oil. Use other essential oils. Try smothering agents.

Summarize the following:
While you likely don't need to worry, some moles can become cancerous. Typically, these moles will have an asymmetrical shape, an odd border, and an evolving shape. Additionally, they tend to be larger moles and may change colors. To be safe, see your doctor if your mole may be abnormal. Try not to worry because most moles are benign. Your doctor can check your mole to make sure you're okay. Your doctor will do a physical examination of your mole. If they think it could be cancerous, they'll take a small sample and do a biopsy to be sure. You may occasionally cut your mole while shaving or going about your life. If this happens, care for your wound by keeping it clean and applying an antibacterial ointment. If it doesn't start healing in a couple of days, visit your doctor to get medical care.You don't want your mole to get infected, so ask your doctor about treatment.

summary: Visit your doctor if your mole grows, changes, or looks unusual. Get immediate medical care if a cut mole isn't healing.

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No matter what vehicle you're using, it's important to keep 2 hands on the wheel at all times. To give yourself maximum control, imagine that your steering wheel is a clock and keep your hands at the 9-o'clock and 3-o'clock positions. This is particularly important for vans because, if you don't keep a firm grasp on the wheel, you could lose control of the vehicle and cause a rollover. Vans are heavier and bulkier than normal cars, meaning they take longer to brake. To account for this, leave more space than normal between yourself and other cars. As a general rule, leave at least 4 seconds of distance between you and the car in front of you. To calculate how far behind a car you are, wait until the car passes a clear object or road marker. As soon as it does, count how many seconds it takes until you pass that same object. Depending on the area and the exact size of the vehicle, your van may be subject to special speed restrictions different from the posted speed limit. In most cases, this will be 10 miles (16km) per hour lower than the max for standard cars. To see if an area you're traveling in enforces van-specific speed limits, contact the local Department of Motor Vehicles or search online for local driving regulations. Vans are tall and narrow, which means they're more prone to tipping over. Though not usually a problem on straight paths, this can make turning more precarious. To minimize the risk of tipping, slow down to around 5 to 10 miles (8.0 to 16.1km) per hour before making sharp turns. To avoid colliding with curbs, road signs, and other vehicles, make sure your van is positioned in the left or right-most lane, depending on which direction you need to turn. Make sure other vehicles are far enough away from the van that you won't side sweep them when turning. Then, make your turn, waiting until you are far enough into the intersection that your vehicle's back end won't hit other cars. Before changing lanes or backing up, put on your blinkers to indicate your intentions. Then, check all your mirrors for other cars and pedestrians. If your cargo van has a clear back window, turn your head and look through it to make sure there are no cars in your blind spot. If necessary, get out of your van to check the surroundings before backing up. Though vans are not as large as semi trucks, they are significantly taller than normal cars, meaning they may not be able to go under bridges and ledges other vehicles can. Before going under a low ledge, check the clearance sign on top to see if your van is short enough to fit underneath. Do not go under ledges that are lower than your vehicle. Most major bridges are tall enough to accomodate semi trucks, so look out primarily for old, small-town bridges and clearance poles at places like gas stations and fast food restaurants.
summary: Drive with 2 hands firmly on the wheel. Leave extra space between you and other vehicles. Obey van specific speed limits. Slow down more than normal when approaching turns. Make wide turns. Check your mirrors before backing up or changing lanes. Be cautious before going under bridges and other low ledges.