You can take various steps if you have black patches on your foreskin: Maintaining proper hygiene Wash the area with warm water and mild soap Avoid using scented or harsh soaps that could irritate the skin. Some herbal medicines may help lessen the appearance of black spots. Honey, lemon juice, aloe vera, cucumber slices, or aloe vera gel have spot-lightening properties Protecting the skin from the sun is crucial if the dark spots result from hyperpigmentation.