What over the counter cream used to treat rosachea?

I use (Dermablend) and (Flaxelle Cream).What over the counter cream used to treat rosachea?
My mother has rosachea and (this sounds crazy) she uses yogurt as a cold cream three times a week before bed. She just rubs it on her skin, leaves it for 5 mins and rises it away. She says to steer clear from the citrusy flavored yogurts because they tend to dry your face out. The yogurt cuts down on a lot of redness