<prompt> In Acne rosacea, the main pathogenesis is:UnknownIncreased sebum productionIncreased reactivity of cutaneous blood vessels to vasodilatorsTelangiectasia is present over whole face along with the exposed part of back where papules pustules are also present  <response>: Ans. A. UnknownAcne rosacea - Disease of unknown etiology, Papules pustules over central face but never over any other part of body; Telangiectasia of nose cheeks; Facial erythema.a. Flushing reaction to hot, spicy foods alcohol but no increased reactivity of cutaneous blood vessels to vasodilators.b. Sebum production is normal.Tit-Topical oral antibiotics; topical metronidazole; avoidance of hot, spicy foods alcohol. 