Implantable cardioverter-defibrillator. An implantable cardioverter-defibrillator (ICD) or automated implantable cardioverter defibrillator (AICD) is a device implantable inside the body, able to perform cardioversion, defibrillation, and (in modern versions) pacing of the heart. The device is therefore capable of correcting most life-threatening cardiac arrhythmias.
Prescription Treatments. Nail fungi are small organisms that require warm moisture to survive, which means that they thrive inside shoes and socks. This makes toe fungus especially difficult to treat. Prescription treatments include the oral medications terbinafine and itraconazole.
Over the Counter Treatment for Toe Fungus. Toenail fungus is an infection that can penetrate one or more nails. It may begin as a small spot under the tip of the nail and progress deeper. As it spreads, the toenail can discolor, thicken, and crumble. The result is an unsightly and painful nail that is brittle, distorted, yellowed, or dull.