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, are red welts that appear on the skin and are typically caused by an allergic reaction to foods or medication.They may appear like a normal skin rash that is slightly raised, forming in large patches.ives, also known as urticaria, are red welts that appear on the skin and are typically caused by an allergic reaction to foods or medication.