The reason the three way classification of Igneous, Sedimentary and Metamorphic is used is because the processes involved in forming the three rock types usually results in a characteristic relationship between the mineral grains that is diagnostic. Sedimentary rocks form from sediments deposited from water or air.he reason the three way classification of Igneous, Sedimentary and Metamorphic is used is because the processes involved in forming the three rock types usually results in a characteristic relationship between the mineral grains that is diagnostic. Sedimentary rocks form from sediments deposited from water or air.
1 To prevent blisters caused by rubbing (friction blisters): 2  Avoid wearing shoes that are too tight or that rub your feet.3  Roomy footwear has a wide toe box with more room for your toes and the ball of your foot. 4  You should be able to wiggle your toes in your shoes.ome of the most common types of blisters can be prevented. 1  To prevent blisters caused by rubbing (friction blisters): 2  Avoid wearing shoes that are too tight or that rub your feet.
To drain a blister: 1  Sterilize a needle and the surface of the blister with rubbing alcohol. 2  Introduce the needle into the side of the blister, parallel to the skin, so you don't run the risk of piercing the flesh at the base of the blister. 3  Gently dab the blister with sterile gauze to facilitate the drainage.4  Apply anti-bacterial ointment and a ...eghan Cleary and podiatrist Megan Leahy, DPM to find out what we can do to love our shoes â¦ and wear them, too! PREVENT BLISTERS BEFORE THEY HAPPEN: 1  Tailor the shoe to your foot. 2  Most of us wait until we get a blister to do something about it.