Niacinamide (nicotinamide)

[Guide]

There are a number of papers indicating niacinamide (Nicotinamide) improves rosacea. You may want to ask your dermatologist about niacinamide. You can purchase niacinamide over the counter (non prescription).  Wikipedia points out that "nicotinamide has the benefit of not causing skin flushing."

Niacinamide eases rosacea inflammation
June 01, 2010 By Lisa Samalonis, Dermatology Times

Niacinamide-containing facial moisturizer improves skin barrier and benefits subjects with rosacea.
Cutis. 2005 Aug;76(2):135-41
Authors: Draelos ZD, Ertel K, Berge C

A review of nicotinamide: treatment of skin diseases and potential side effects.
J Cosmet Dermatol. 2014 Dec;13(4):324-8
Authors: Rolfe HM