Body piercings in areas like your naval which may harbour moisture are prone to infection. This "bubble" could be early signs of an abscess due to infection under the skin and could lead to serious condition if left untreated. Is the area red or warm to the touch? How long ago did you have this … Read more
You should be able to find these panels in a variety of colors at either Home Depot or Lowe's. 12' sheets run around $13.