The formication hallucination (imaginary bugs or insects crawling on or under the skin) also characterises speed psychosis. This type of hallucination often leads to incessant scratching and picking at your skin. Left unchecked, this can lead to bacterial infection and physical disfigurement. It's up to you to tell yourself to STOP! And not go there. If it gets really bad, stopping your use will give your body and mind time to heal. The hallucinations will stop once the drug is reduced in your system. For more information go to www.druginfo.adf.au.