Immediately afterwards the area reddens and may burn like sunburn, but this is short-lived. Some swelling of the spots will be seen. If large areas or many spots are being treated, significant swelling can occur after treatment, especially under the eyes. Downtime from work is variable. A few spots will usually not entail downtime. By day two, the pigment starts to darken, and over the next few days crusts over and then literally washes off. This will take 5 – 7 days on the face and 10 – 14 days on the body. Use of a broad-spectrum SPF50 sunscreen is essential to minimise the risk of repigmentation or even hyperpigmentation.