Problem: Article: Start by examining the spot for any shades of brown or black. Some cancerous spots will have patches of pink, red, white, or blue. They are usually not the same color all over. You may also notice a mole or birthmark where one part is not the same color as the other part. Look at the border of the spot to see if they appear irregular, ragged, blurred, or notched. Notice if the spot is ¼ inch across or larger, about the size of the pencil eraser. The shape of the spot may also change over time, becoming larger. The spot may be irritated or swollen, or become more so over time. It may also painful or tender to the touch.  You should also take note if the spot starts to ooze, bleed, or becomes scaly. Sometimes, cancerous spots become red or tender beyond the border of the mole or birthmark. Different skin cancers appear in different areas and have different appearances. For instance: Basal cell carcinoma usually occurs on areas of the skin exposed to the sun, like the neck or face. It appears as a pearly or waxy bump, or a flat flesh-colored or brown scar-like lesion. Squamous cell carcinoma also occurs on areas of the skin exposed to the sun, such as the ears, face, and hands. It appears as a firm, red nodule or a flat lesion with a scaly, crusted surface. Melanoma can develop anywhere on the body. Signs include a large brown spot with darker speckles; a mole that changes in color or size; a small lesion with irregular borders and areas of red, white, blue, or blue-black; and dark lesions on your palms, finger tips, the soles of your feet, or toes.
Summary: Look at the color of the spot. Check the shape and size of the spot. Notice if the spot is itchy, painful, or tender. Determine what type of skin cancer you may have.

Problem: Article: If you’re going into a chigger hot spot or any area with tall vegetation, prevent chiggers from attaching to you by concealing as much skin as possible. Wear long sleeves, long pants, long socks, and tall boots. Opt for tightly-woven fabrics over airy, loosely-woven ones. Chiggers are small enough to find their way in between the gaps present between threads of loosely-woven fabrics, but they will have a significantly harder time finding their way through clothes with smaller gaps. Chiggers can find their way to your skin by hopping onto your clothes and crawling underneath. To get rid of them before this happens, seal off any openings to your skin as best as possible. Focus especially on areas from the waist down, since chiggers often move from tall grass to your lower body.  Tuck your socks into your pants or your pant legs into your socks, sealing off the gap of skin between them. Tuck your shirt into your pants. Chiggers like to nibble on areas with thinner skin, such as the genitals—ouch! If venturing into tall grass or weeds, tie off your sleeves around the wrists with rubber bands or ribbon. When possible, wear clothes with zippers rather than buttons. Certain strong odors, including sulfur powder, are reputedly effective at driving chiggers away. Sprinkle a fine dusting of sulfur powder into your shoes and/or socks to drive off any chiggers lurking in the grass and weeds by your feet.  For even better protection, consider sprinkling a light dusting of sulfur powder over the inside of your shirt and pants. Note that sulfur powder has a potent odor, which may make it a less than ideal solution if you have a particularly sensitive sense of smell. There’s also not much reliable evidence to prove that this method really works. DEET is one of the most effective bug repellents for use against chiggers and other mites. Apply the repellent to your exposed skin, especially on the hands, arms, and legs. You can also apply it to your clothing (but not your skin underneath clothing) in these areas.  DEET treatments can last for 2 to 3 hours. You’ll have to reapply it after that. Do not spray DEET repellents near your mouth or eyes. Do not spray DEET repellents on skin covered by clothing, as doing so may cause skin irritation. Follow the label directions carefully. Some repellents can damage clothing, plastics, nail polish, and painted or varnished surfaces. Like DEET, permethrin (0.5%) repellents are also very useful against chiggers. However, permethrin should only be applied to your clothes, never directly to your skin.  Permethrin repellents can last for several days after application and remain on your clothes after being washed once or twice. In fact, you may want to treat your clothes the day before you wear them. Apply the repellent to both sides of your clothing, focusing on openings like cuffs, necks, and waistbands. Let the repellent dry completely before putting the clothes on. Follow the label directions carefully as you apply the repellent. As with DEET repellents, some permethrin repellents can damage clothing, plastics, nail polish, and painted or varnished surfaces. If you are walking in a park, picnic area, or other location where you have no control over how tall the grass and weeds are, make sure you stick to well-worn paths. Assume that any spot with tall grass is a chigger hot spot, especially if it’s also damp and shaded.  Steer clear of unmowed fields and walk in the center of mowed trails to avoid accidentally brushing up against taller vegetation. Chiggers need well-hidden vegetation that offers plenty of shade and moisture in order to thrive. Tall vegetation provides the perfect chigger environment. Even though chiggers do not often hang out in low-cut grass, they may be in the area if there is taller vegetation nearby. If chiggers have migrated to the shorter grass, they may bite and attach themselves to the bare skin of your hands, neck, or head.
Summary: Cover your skin with tightly-woven fabrics to block chiggers. Tuck or tie off all openings in your clothes. Sprinkle sulfur powder in your socks and shoes. Use a repellent containing diethyltoluamide (DEET). Try permethrin treatments for your clothes. Avoid venturing into tall grass whenever possible. Don’t sit or lie on the ground, especially anywhere near a potential hot spot.

Problem: Article: Formatting your MacBook's hard drive will erase all of the data on it. Back up any documents, pictures, or other important files before formatting. You can copy the files to an external drive, burn them to a blank DVD, or upload them to your iCloud storage or other cloud storage service. You'll need an internet connection in order to download the necessary files during the format and reinstall process. ⌘ Cmd+R as soon as it starts up. This will load the Recovery menu. This will open a new window, with all of your drives and partitions listed in the left frame. Select your startup disk to erase the partition that contains your operating system files. You can use the size of the partition to help judge the correct one. If you're getting ready to get rid of your Mac, you'll want to adjust the security options in order to securely erase the data on the drive. You may be presented with several different options, or a slider from "Fastest" to "Most Secure." Select the "7-Pass Erase" or "Most Secure" option to securely erase your data without any chance of retrieval. This will dramatically increase the amount of time the format process takes. This is the format required to install OS X on the Mac. The drive will begin the formatting process. If you didn't change the security options, it will only take a moment. If you chose a secure erase, it may take several hours to complete. " You'll need to be connected to a wireless network in order to proceed with the reinstallation. Follow the prompts to install OS X back on the computer so that you can use it again. The setup program will download all of the essential files automatically.
Summary:
Back up your important data. Ensure your computer is connected to the internet. Reboot your Mac and hold . Select the "Disk Utility" option. Select the partition that you want to format and then click the "Erase" tab. Click the "Security Options" button if you want to securely wipe your data (optional). Select "Mac OS Extended (Journaled)" from the "Format" menu. Click the "Erase" button. Close the Disk Utility window and click "Reinstall OS X.