Reddish dots with irritation in a sensitive area are often due to skin irritation, sweat, friction, or a mild infection. Keep the area clean and dry by gently washing with plain water, patting dry, and wearing loose, breathable cotton clothing to reduce rubbing and moisture. Avoid using harsh soaps, perfumes, or tight clothing that can irritate the skin further, and try not to scratch, as this can worsen the condition. You can keep the area cool and allow some air exposure to help with healing. If the redness spreads, becomes painful, or shows discharge, it needs attention. Consult a doctor if it does not improve or starts getting worse.