Article: Consult your doctor or dermatologist before trying hydrogen peroxide for your acne. Many experts don't recommend using hydrogen peroxide for acne due to its irritating and drying potential. Hydrogen peroxide (H2O2) is a chemical which can act as both a bleach and a disinfectant.  Our bodies actually produce small quantities of hydrogen peroxide to help attract white blood cells to areas where there’s an infection.  Because of its disinfectant abilities, hydrogen peroxide kills bacteria.  But it isn’t selective in what bacteria it kills, and our bodies contain a lot of necessary and healthy bacteria. You can use hydrogen peroxide to clear acne using one of two methods: in a cream, which contains a concentration of up to 1% hydrogen peroxide; and in “pure” liquid form, which should contain no more than a 3% concentration.  Hydrogen peroxide can come in concentrations higher than 3%, but those higher concentrations should never be used on your skin.  Hydrogen peroxide in a 3% concentration can almost always be found in a drugstore, near the first aid supplies.  If you are only able to find hydrogen peroxide in larger concentrations (normally 35%) you will need to dilute it with water before using it on your face.  To dilute a 35% concentration to 3%, you’ll need 11 parts of water for every one part of hydrogen peroxide.  If you use the cream version, follow the instructions on the package as to how to apply it to your face, and how often. If you have acne, this should include using a gentle soap and only your hands — not cloths or brushes.  Wash your face using warm water to help open the pores before cleansing and using the hydrogen peroxide.  Dry your face completely before applying the hydrogen peroxide.  Dry skin will absorb the hydrogen peroxide better than wet skin. Use a cotton pad, cotton ball or even a Q-Tip, soak it in the hydrogen peroxide, and move it over the affected areas of your skin.  Do not apply it to unaffected areas.  Leave it to soak into your skin for 5-7 minutes.  Try out a small amount on a small area of your skin before putting it over larger areas to make sure your skin can tolerate it and that it doesn't cause too much irritation. And if it is too irritating to your skin, talk to your doctor about a different option. Do not apply hydrogen peroxide to the skin more than once a day. After the hydrogen peroxide has soaked into your skin, gently apply a high-quality, oil-free facial moisturizer.  One of the reasons that hydrogen peroxide works on acne is because it helps dry up the excess oil on your skin.  A moisturizer helps ensure you do not completely dry out your skin and keeps your skin soft and smooth.
Question: What is a summary of what this article is about?
Talk to your doctor first. Obtain the proper kind of hydrogen peroxide. Wash your face using your normal daily routine. Apply the hydrogen peroxide to your clean skin. Apply oil-free moisturizer.

It is okay if the Autocad drawing is not to scale, as long as you know at least one length. Type in "UN" followed by the space bar to change the units. Make sure the units are architectural and the precision is 1/6". This can be a wall length or the length of a building. Larger lengths make more accurate scaling in Autocad. You do not want to scale the whole drawing by the width of a door or the length of a piece of furniture, for example. Click on the line, type "properties" followed by the space bar in the command prompt. Scroll down the pop up window until you see the length of the line. Write this number down. You can also draw a new line in the drawing to scale from, if the line doesn't exist in the drawing, like the length of a building, for example. (length full scale) / (length measured in drawing). You should get a decimal number. Write this number down. Then select the entire AutoCad drawing and press the space bar. Then click any part of the drawing. You will see as you move your mouse, AutoCad is attempting to manually scale the drawing. Do not click a second time. Instead type in the command prompt the decimal number you got from Step 5. Then press the space bar. The drawing should be scaled accurately. If it is close, but slightly off, you may have not included enough decimal places in your scale calculation. Simply repeat steps 3-6 for the new scaled drawing to get the scale even more precise. After a second run of the scale, the AutoCad drawing should be accurately scaled.
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One-sentence summary --
Import or go to the Autocad drawing that is not to scale. Identify one line segment in the drawing that you know the length of. Measure the length of the line segment that you chose in Step 2. Divide the length the line should be by the length the line is in the drawing. Type "scale" into the command prompt followed by the space bar. Check the line that you measured in step 2 to make sure the scale is now accurate.