I have had a very severe case of Rosacea. Mostly I think it occurs during stress and overheating. I think overheating really may cause this as perhaps the demodex mites increase in number when the body temperature changes or some chemistry in the body.
I treated and got all the pustules off in a matter of days and my face color is back. But remember this is more to do with internal heat than topical. So start changing your blankets to light weight where I also felt improvement. Don't overheat yourself at night with warm blankets or room temperature etc. Try to eat less hot foods, and go on eating more colder foods such as fruits and salads. etc, when you drink coffee/tea wait until it cools down.
So for treatment, I would like to share what I used.
A face wash with grapefruit over the counter any facewash will do that has the pink grapefruit, put it on the face then take a bit of Epsom Salt and gently scrub the affected area. Do it 2 times a day, now that may dry the skin, so I used moisturizer for very dry skin I bought plain moisturizer and added some drops of tea tree oil to it and applies that on my face. That was it.
When I got rosacea I was in a very bad place in my life and I was using a down comforter and I didn't have time to change to a lighter blanket, I overheated my body and got it. Just to let you know that my entire face was affected in a matter of weeks I had a terrible painful pustular Rosacea and I tried a lot of remedies and the combination of these ingredients helped me overcome this. Hope this helps someone.