Can a person suddenly develop an allergic reaction to a substance such as latex?

Latex Allergy: Typically patients with latex allergy develop localized redness, rash, and itching around the areas that was exposed to latex. This typically occurs after wearing latex gloves or latex condoms. Latex allergy is less common then it used to be because most products these days are made latex-free. An allergist can do testing in the office to determine if you have a sensitivity.