Hair oiling is known for nourishing dry hair and improving shine, but monsoon changes everything. Increased humidity, sweat, and damp conditions can trap moisture on the scalp, leading to itching, dandruff, and even hair fall if oil is left on too long. Experts say you do not need to stop oiling completely. Instead, changing how and when you oil your hair can help protect both your scalp and your strands throughout the rainy season.