“Nail tissue is harder and thicker, so these medications don’t penetrate very well,” Waldman explains. That’s also true for antifungal drugs taken as pills. Toenails grow slowly and ... may still be ...

Nail tissue is harder and thicker, so these medications don’t penetrate very well. That’s also true for antifungal drugs taken as pills. Toenails grow slowly ... be lurking under your nails.