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.
Make a homemade gnat trap. One easy way to rid yourself of a gnat infestation is with an easy and cheap do-it-yourself gnat trap. Find a used can or jar (Mason jars work especially well) and fill it with apple cider vinegar. Gnats are extremely attracted to the scent of vinegar.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.