Studies have shown that people with higher levels of vitamin D have fewer lupus symptoms. Those living in places where there is more sunlight have a lower risk of developing autoimmune diseases.[12] African-Americans with lupus have been found to have lower levels of vitamin D than Caucasian people with lupus.[13]
In some cases, itchy skin may be caused by complications of diabetes such as nerve damage or kidney disease. Itching of the feet, legs or ankles is a common complaint in people with diabetes that may occur as a result of a period of too high sugar levels. Itching can range from being annoying to severe. Itching can be relieved through treatment, and may be eliminated if the underlying cause is treated.
1 You may notice itching, hives, and swelling around an injury or sore, or a rash of small, red bumps that may or may not bleed. 2  Flea bites are more common on your ankles, in your armpits, around your waist, and in the bends of your knees and elbows. mosquito bite appears as an itchy round, red, or pink skin bump. It's usually harmless but can sometimes cause serious illnesses like West Nile virus or malaria. About 2,000 U.S. cases of West Nile were reported to the Centers for Disease Control and Prevention (CDC) in 2014.