I often find that physical problems that have to do with appearance rather than functionality of a human being are often ridiculed at. The ones making fun never realize that they are taking a potshot at something that you often have no control over. Some are sensitive to realize it while others aren't. I have friends that fall in both categories. Unless you know the problem, you tend to take it in a light and often mean spirited way. I'd say that you work towards keeping your spirits high and learn to forgive the ones who are making fun. Most of them are ignorant, not malicious.
I applaud your attitude of taking the issue head-on. For my case, I've trained myself to forget such shortcomings with myself and most often I don't realize that they exist.
