Foot Specialist Piscataway NJ, Dr. Peter Wishnie discusses discolored toenails resulting from fungal infections. A fungal nail infection is caused by bacteria. Fungal nail infections are most often seen in adults and more commonly affects toenails rather than fingernails. Symptoms for fungal nail infections include nail discoloration and thickening, or detaching of the nail from the nailbed. Foot Specialist Piscataway NJ, Dr. Peter Wishnie advises that over the counter creams and ointments are usually ineffective in completely eliminating the fungus, but may improve appearance and diminish symptoms. To obtain more information please visit your local podiatrist. br br Piscataway Foot Specialist, Dr.