Rosacea, like common acne vulgaris is caused by blocked pores, infection, and homones leading to an inflammatory response. We have a long way to go before we can talk about a cure. In my opinion, all of our efforts are directed at controlling this condition.
Research dollars should be directed at basic science, epidemiology (understanding the population with rosacea), applied basic science, and clinical studies regarding particular drugs. A broad effort is required since we are not yet close to a single clear answer to this problem.