Post-IPL facial pustular reaction, rosacea papulopustular growth everyday, dehydrated skin with sun/heat sensitivity.

I break out in pustular reaction after every IPL facial. Why? how to prevent it/control it? skin does look better after,have about 10 sessions already. I also get pustules on cheeks everyday! metronidazole and Sulphur helps but doesn't stop it from growing everyday. I have sensitive, fair skin, with rosacea and dehydrated skin. I also have dry red patch under my mouth/ corners that doesnt go away.I am confused what should be in my skin regimen with such skin conditions all together, please help!

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