Tactile hallucination is the false perception of tactile sensory input that creates. Webformication, a type of tactile hallucination, is the feeling of imaginary insects or spiders on the skin. It is one specific form of a set of sensations known as.

Webformication is a symptom where you hallucinate the feeling of insects crawling in, on or underneath your skin. This symptom has many possible causes, including mental health.