As head of Americaâs largest oil company, Mr. Tillerson has earned a friendship award from Russia and voiced skepticism about American sanctions that have halted some of Exxon Mobilâs biggest projects in the country.
Top 10 facts about the world. Welts are bumps in the skin that are caused by a fluid buildup directly below the surface of the skin. A number of things can lead to the development of a welt, ranging from trauma to the skin to an allergic reaction.
Hives, also known as urticaria, usually starts as an itchy patch of skin that turns into swollen red welts. It can be set off by many substances or situations. The itching may be mild to severe. Scratching, alcoholic beverages, exercise and emotional stress may worsen the itching.