It's important to talk to your doctor if you notice vitiligo symptoms. This is because you can take steps to prevent other related problems, such as skin cancer, from developing. You can also develop inflammation in your eyes, and your ophthamologist can treat this.
If you want to treat the symptoms of your vitiligo, some treatments work best when they are done early, before any spreading of skin patches occurs. Your doctor also needs to rule out whether you have a skin problem with symptoms similar to those of vitiligo. You may need a different kind of treatment for skin problems like psoriasis or dermatitis.