Also, keep in mind mercury exposure can affect your mental state, so don't assume your personal assessment of your health is valid. It's a good idea to contact Poison Control or consult your physician. Mercury First Aid. If you do get mercury on your skin, seek medical attention and follow professional advice.
Definition of orthotics. : a branch of mechanical and medical science that deals with the design and fitting of orthotics.
1) Customized (rigid) orthotics: These orthotic shoe inserts are for individuals with severe biomechanical disorders that are more serious than the common degree of overpronation that most of us deal with. Custom-made, rigid orthotics must be prescribed by a foot specialist (podiatrist).