A crawling sensation felt on the skin may be caused by a condition called morgellons, according to WebMD. Common symptoms of morgellons include feeling like bugs are crawling on the skin, burning, itching and stinging sensations. In some cases skin sores may appear as well.
People who experience symptoms of morgellons sometimes report experiencing additional symptoms such as fatigue, hair loss and sleep problems. Morgellons is a controversial condition with no clear explanation. Some medical experts deem it a psychological condition referred to as delusional parasitosis, states WebMD. Because no cause of the condition is known, there is no cure or specific treatment as of January 2015.