Feeling like bugs are crawling on your body, you first need to determine if there are bugs or not. It is recommended to visit a dermatologist to rule out mites, lice, fleas or scabies. In addition to the feeling of crawling insects, is there an itchy skin rash or other conditions. If the tests are normal, you can go to the neurology department to check if there is any abnormality in the nerve sensation that causes this symptom. In addition to this, allergies and other related diseases should be ruled out. When specific allergens come into contact with the mucous membrane of the skin, they may cause itching and discomfort or foreign body sensation.