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.
There are a lot of things that can cause these itchy, swollen welts -- an allergy, infection, sun, exercise, stress, or an illness. The bumps vary in size and can merge to form larger ones. Hives often fade within a day, but new ones can appear as the old ones go away. A bout may last days or weeks. If you know what triggers your hives, avoid it.