After consent was obtained, a digital photograph of the affected nail was taken, and then a nail wedge/clipping was collected for KOH microscopy and culture. You must avoid alcohol consumption and stay out of direct sunlight if you take any of these medications. Other types of toenail fungal diseases, such as those caused by yeast or nondermatophyte moulds, can also spread throughout the body. It is often called PEG in the pharmaceutical sector. It is made with flax seeds which have been ground up and pressed to release their natural oil. The natural formula of the product makes it suitable to all ages. The laser light penetrates through the nail and soft tissue to both kill fungus in its path, and promotes new nail growth. Kerassentials products do not diagnose, treat or cure any medical condition. The fingernail's production is done by living skin cells. A yellow or white spot located under the tip of your nail is the first sign of a toenail infection.