Rashes and itching after using sanitary pads are usually due to skin irritation or an allergy, often called contact dermatitis, which can happen because of the pad material, fragrance, moisture, or prolonged use without changing. The constant dampness and friction in that area can also lead to fungal infection, especially if there is redness, itching, or a burning feeling. To manage this, try changing pads every 4-6 hours, choose unscented and soft cotton-based pads, and keep the area clean and dry. Wearing loose, breathable underwear can also help reduce irritation. For relief, a doctor may suggest a mild soothing cream, antifungal cream, or a short course of a gentle anti-inflammatory cream, depending on the cause, but it is best not to use any medicated ointment without proper advice. If the rash is severe, painful, or keeps coming back, you should consult a doctor to confirm the cause and get the right treatment.