Latex
Some people are allergic to latex. If you fall into this demographic, skin contact with latex may cause the itchy rash associated with hives to spread rapidly on your skin. [7] This reaction usually starts from the point of contact with your skin, so it is often easy to figure out that there is a trigger. You should stay away from latex if it triggers hives for you.
Insect Bites
Insect bites are a common allergy trigger. [8] The toxins from insect bites often trigger itchy, red bumps and welts on the skin. In some people, insect bites trigger hives that cover a considerable area of skin. Ants and bees are among the most likely insects to sting you and trigger this condition.