What to do if the skin turns dark after an allergic reaction

Patients with skin darkening after an allergic reaction should avoid re-exposure to allergens, minimize sun exposure, and maintain clean skin. Skin-lightening products containing vitamin C, arbutin, or similar ingredients may be used to promote melanin metabolism. If symptoms persist, medical consultation is recommended; prescription medications such as hydroquinone cream may be prescribed. Maintaining a healthy sleep schedule and diet can also aid in skin recovery. Skin care and treatment should be conducted under the guidance of a qualified physician.