Small things make big difference in life

Sometimes, we forgot the small things in life until one day you lose them. Eye lash and nose hair for example, play important roles in our lives. Now with the side effects of chemo, I lost most of my eye lash and nose hair. I realize how inconvenient it to constantly blow my nose and wrap off my tears. Little things in life can have big effects. Now I wonder what facial hair does. There must be a purpose which I have not figured it out yet.