To reduce irritation after shaving, it is recommended to shave during a shower with warm water to soften the hair. It is also suggested to wash the area beforehand to remove any impurities. Using a mild, unscented body soap instead of fragranced shaving foam or gel can help prevent irritation. Shaving in the direction of hair growth and changing the razor blade regularly can also reduce the risk of irritation. Applying a moisturizing cream with ceramides a few times a day can help soothe the skin. If you experience any other symptoms or if the reaction spreads beyond the shaved area, it may be best to consult a healthcare professional for further advice.