Are Topical Medications for Vitiligo Effective? The Role and Limits of Ointment Treatment

There are two main categories: steroids and non-steroids (calcineurin inhibitors). They are chosen based on the area and situation.

Steroid ointments suppress inflammation and immune responses to prevent white patches from enlarging. Ingredients such as clobetasol or betamethasone are commonly used, and when applied precisely only to the lesion area, the risk of side effects is not high. However, long-term use can thin the skin, so they are typically used for a period of about 2 to 4 months, and are often combined with phototherapy.

The calcineurin inhibitors Protopic and ELIDEL are widely used ointments as alternatives to steroids. They suppress the activity of T immune cells in the lesion area, reducing inflammation and helping to increase melanocytes. Originally developed for atopic dermatitis, they also show good effects in vitiligo. Their biggest advantage is that they do not cause steroid side effects such as skin thinning or blood vessel dilation, and they do not lead to resistance, allowing long-term use. Therefore, they are especially preferred for areas with thin skin, such as the face, around the eyes, and the neck. During the first 2 to 3 weeks of use, there may be stinging or flaking, but this usually subsides over time.

For reference, one study (Bae JM, et al. JAMA Dermatol. 2019) reported that a significant number of children with facial vitiligo who used a calcineurin inhibitor alone showed marked improvement. However, individual responses vary.

They are most suitable when lesions are small and limited to a few areas. They are even more useful on areas like the face, which respond well.

Topical medications are strong for 'meticulously managing small areas.' In particular, small lesions detected early can often be well managed with topical medication alone, so starting early when the lesion is small is helpful.

• Cases where it works well → Small, localized lesions, early-stage lesions, facial areas
• Cases where ointment alone is insufficient → Widespread lesions
• Better approach → Using it together with phototherapy, excimer laser, etc., can enhance the response

For widespread vitiligo, ointment alone is insufficient. This is a clear limitation of ointment treatment.

The reason is simple: ointment only works on the area where it is applied. If lesions are widespread over the body, applying it to each spot is difficult and the effect is limited. Additionally, steroid types are burdensome for long-term use over large areas. Therefore, for extensive lesions, it is better to combine with methods that cover a wide area, such as phototherapy.

In practice, ointment creates synergy when combined with phototherapy or laser. The ointment controls inflammation and prepares the ground for pigment restoration, while light therapy stimulates pigment cells on that foundation. So, if lesions are extensive or progressing, it is more realistic to design a combination treatment rather than relying on ointment alone. Ointment is an excellent 'basic treatment,' but it is not a medication that can solve all vitiligo on its own.