Parasitic bugs, such as LICE, are small insects that feed on the blood of their host. LICE are one of the most common types of parasitic bugs, and they can be found on humans, animals, and birds. They are usually spread through direct contact with an infected person or animal, or through contact with contaminated items such as bedding, clothing, and furniture. LICE infestations can cause itching, skin irritation, and other health problems. Treatment for LICE infestations typically involves the use of medicated shampoos and creams.