Adults, the elderly and children: Apply to the affected area twice daily after the skin has been thoroughly washed with warm water and soap.

Caution: Avoid the eyes and mucous membranes, including those of the nose and mouth.

If excessive dryness, irritation or peeling occurs, reduce usage to once daily or every other day.

Room temperature

Nicotinamide 4% w/w

https://www.medicines.org.uk/emc/files/pil.6464.pdf