Give her what she wants. It is all well and good knowing your IFs from your I3s, but if you don't buy her the right type of engagement ring, all is lost. Perhaps the most important piece of advice is never to surprise her with a diamond ring, and not to buy something according to your own taste.
formication in Medicine. formication forÂ·miÂ·caÂ·tion (fÃ´r'mÄ­-kÄ'shÉn) n. An abnormal sensation as of insects running over or into the skin, associated with cocaine intoxication or disease of the spinal cord and peripheral nerves.
Details of delusional parasitosis vary among sufferers, but it is most commonly described as involving perceived parasites crawling upon or burrowing into the skin, sometimes accompanied by an actual physical sensation (known as formication). Sufferers may injure themselves in attempts to be rid of the parasites.