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, welts, weals or nettle rash, is an itchy, raised rash on the skin, often accompanied by swelling. Hives usually appear suddenly, sometimes because of an allergic reaction or being stung by a nettle. They form in response to histamine, which causes surrounding tissues to swell and become red.