Fenistil Gel is a topical medication that provides relief from itching and discomfort caused by various skin irritations, including insect bites, sunburn, and allergic reactions. It contains the active ingredient Dimethindene maleate, which is an antihistamine that helps to soothe the skin by inhibiting the action of histamine, a substance in the body that causes allergic symptoms. The gel is easy to apply, absorbs quickly without leaving a greasy residue, and is suitable for use on adults and children. It is typically recommended for localized application to affected areas, offering a cooling sensation for quick relief.