White patches on the skin may be due to conditions such as vitiligo, a fungal infection, or post-inflammatory changes, so it is important to consult a doctor or dermatologist for an accurate diagnosis before starting treatment. Depending on the cause, treatment options may include antifungal creams, topical steroids, or light-based therapies to help restore pigment and even out the skin tone. To improve smoothness and texture, apply a gentle moisturiser regularly, avoid harsh soaps, maintain a balanced diet, and use a high SPF sunscreen daily to protect the affected areas from further damage.