If you have been the victim of a hair removal practitioner who has injured you, finding a lawyer will be a fairly simple situation.findlaw lawyer directory
Choose your state and the topics:
personal injury -- plaintiff
medical malpractice law
If you have paid for a device or service that made unsubstantiated claims of permanent hair removal, you will have a somewhat more difficult time, but it's not impossible. I recently helped a woman get back $2750.00 due to a company making false and deceptive claims about a device's effectiveness.
If your losses were under $5,000 in most states, you can sue in small claims court. You can either hire a lawyer to help or do it yourself. Many scammers are excperienced with litigation because they've been sued many times, so it may be in your best interest to have a pro help out. Keep in mind they will probably take a significant portion of any money you get back, as their fee.
If you wish to sue in small claims court yourself, I will be outlining the steps you need to take in the near future. Stay tuned!