1) Paraesthesia 2) Paresthesia 
Formication is the medical term for a sensation that exactly resembles that of small insects crawling on (or under) the skin. It is one specific form of a set of sensations known as paresthesias, which also include the more common prickling, tingling sensation known as `pins and needles`. Formication is a well documented symptom, which has numer.....
sensation like ants crawling on the skin
• (n.) A sensation resembling that made by the creeping of ants on the skin.
(for″mĭ-ka´shәn) a tactile hallucination in which there is a sensation of tiny insects crawling over the skin; most commonly seen in cocaine or amphetamine intoxication.
The tactile hallucination or illusion that insects are crawling on the body or under the skin.
For`mi·ca'tion noun [ Latin formicatio , from formicare to creep like an ant, to feel as if ants were crawling on one's self, from formica ant: confer French formication .] (Medicine) A sensation resembling that made by the creeping of ants on the skin. Dunglison...
Type: Term Pronunciation: fōr′mi-kā′shŭn Definitions: 1. A form of paresthesia or tactile hallucination; a sensation as if small insects are creeping under the skin.
Formication: The illusion or hallucination that ants or other insects are creeping on or under the skin. Formication is a feature of some psychotic states as well as drug and alcohol abuse. From the Latin formicatio, from formicare meaning to creep like an ant. Not to be confused with fornication.
[n] - hallucinated sensation that insects or snakes are crawling over the skin
a tactile hallucination involving the belief that something is crawling on the body or under the skin.
hallucinated sensation that insects or snakes are crawling over the