Common side effects of waxing include redness, minor irritation, and occasional bumps. To minimize these effects, avoid hot showers, saunas, and vigorous exercise for 24 hours post-waxing. Gently exfoliate the area after a few days to prevent ingrown hairs, and apply a soothing moisturizer or aloe vera gel to keep the skin calm. If you experience severe discomfort or prolonged irritation, contact your waxing professional.