If a man is not allergic to medicated soap, he can wash his lower body with medicated soap occasionally, but should not wash his lower body with medicated soap for a long time. If a man is allergic to medicated soap, he should not use medicated soap to wash his lower body. If the local skin is not allergic to medicated soap, occasional use of medicated soap to wash the lower body can remove local dirt, to keep the local skin clean. But to avoid prolonged use of medicated soap to wash the lower body, because long-term use of medicated soap may produce skin irritation, some people are prone to skin dryness, skin peeling, skin redness and other discomforts. If men are allergic to medicated soap to avoid using medicated soap to wash the lower body, to prevent the use of medicated soap to wash the lower body after the skin rash, itching and other allergic reactions. Whether men can use the soap need to be based on whether the soap is allergic to judgment, in addition, usually use the soap to wash the lower body need to timely local soap with warm water to clean, to avoid skin irritation.