Hello, on the corners of my fingernails they seem to be infected! They are yellow and white on 3 fingers. On these fingernails there is a bump where its yellow. I can look under the fingernail and see white layers like, my thumb nail is splitting on the side. I ve been covering it up with nail polish... Probably not the best thing... Also, on my toenails they are yellow to but seem soft. I keep meaning to ask my Dermatologist whats going on, but keep forgetting!