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.
Hives, or urticaria, can create intense itching along with bumpy welts. Allergies to food, pollen, or drugs can cause hives to erupt anywhere on the body. Among the most common of skin welts in humans, these conditions usually disappear within 12 hours. Ad.
Multiple causes: Welts or hives on the skin are usually triggered by increased allergy cell activation (mast cells) that release histamine. If present for less than 6 weeks, they can be secondary to medication, infection, food, or sting.