1 Irritation and allergic reactions. 2  Wool, chemicals, soaps and other substances can irritate the skin and cause itching. 3  Sometimes the substance, such as poison ivy or cosmetics, causes an allergic reaction.auses. Possible causes of itchy skin include: 1  Dry skin. 2  If you don't see a crop of bright, red bumps or some other dramatic change in the itchy area, dry skin (xerosis) is a likely cause.
Make sure to wash your hands thoroughly with soap, especially after using the toilet [source: Kids Health ]. Your doctor can prescribe medication to fight pinworms, or you can try getting rid of them naturally, with one of the remedies listed below. 1  Refrain from eating sugar.2  Pinworms thrive on sugar and refined carbohydrates.ake sure to wash your hands thoroughly with soap, especially after using the toilet [source: Kids Health ]. Your doctor can prescribe medication to fight pinworms, or you can try getting rid of them naturally, with one of the remedies listed below. 1  Refrain from eating sugar.
Deal with gnat-infested plants. Some types of gnats are attracted to the moist soil in house plants and even lay their eggs in it. There are several things you can do to get rid of the gnats and save your plant. Firstly, you should stop watering your plant until the top two inches of soil become completely dried out.ou may need to repeat this process several times to get all of the gnats, but it is very effective. 2. Use ammonia to kill gnats in drains. To kill any gnats (along with their eggs and larvae) living inside your drain, simply pour a small dose of ammonia into the sink.