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.
Itching can be caused by a number of different conditions, including: 1  skin conditions â such as eczema. 2  allergies or skin reactions. 3  parasitic infestations â such as scabies.  insect bites and 1  stings. fungal infections â such as athlete's foot or vaginal thrush.  hormonal changes during pregnancy or the menopause.