You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Magnan's symptom is seen in and explain in detail?
Tactile hallucination: this is hallucination of touch. In this type of hallucination, the person gets the feeling that some insects are crawling under the skin(formication) This is otherwise called Magnan's symptom, usually occurs in cocaine addicts. Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 360