Will a High Dose of Accutane Aggravate Rosacea?

Hi, My dermatologist has prescribed me a high dose of accutane to treat my teen acne. However I also have a minor case of rosacea. I have heard about treating rosacea with a "low dose of accutane". Is there a reason they suggest a low dose? will a high dose aggravate the redness/flushing I experience?

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