11. Kelley put the books in zippered plastic bags early on, hoping to keep pages from discoloring . 12. Symptoms can include discoloring of the pupil, and treatment may include surgery to remove the cataract. 13. THE SOLUTION : Add a drop or two of vegetable oil to the pan to prevent further discoloring . 14. I clipped off the surface to elminate the bleach spots, but I was left with some discoloring . 15. Q . I have strange gray discoloring of the vinyl floor around my toilet, but no water. 16. A . That grayish discoloring around the toilet is caused by moisture, which is under the vinyl. 17. Carbon monoxide, a gas that is also a component of wood smoke, prevents the flesh from discoloring . 18. In some extreme cases, the copper in the jewelry can tarnish and cause greenish discoloring of the tissue. 19. Work with one artichoke at a time, frequently rubbing the exposed surfaces with the lemon half to prevent discoloring . 20. First, apply a clear base coat to strengthen the nail and prevent pigmentation from seeping in and discoloring it.
