A PTIN is an identifying number â like a Social Security number â for tax return preparers and certain other tax professionals. Since 1999, tax return preparers have been able to use a PTIN on tax returns instead of their Social Security Numbers; they also used to be free.
Melasma (muh-LAZ-muh) is a common skin problem. It causes brown to gray-brown patches on the face. Most people get it on their cheeks, bridge of their nose, forehead, chin, and above their upper lip. It also can appear on other parts of the body that get lots of sun, such as the forearms and neck. One of the most common treatments for melasma is sun protection.
Here are the common causes of brown spots on thighs and legs. Aging and Dark Spots: As you grow older, the body produces much more melanin than when you are young. This is shown as a sign when your skin develops black or grey spots on the skin.