Thanks
Dermatologist
I presume this question stems from the fact that little critters called demodex mites play a role in some forms of rosacea. Whilst this is true, these mites are found in normal skin and do not spread from one person to another. In addition to this, the pus-filled spots that some patients develop on the face with papulopustular rosacea are completely sterile. This means that there are no bugs growing to cause the pus to form. The pus is simply due to over-activity of one part of the immune system in the skin, causing inflammation. Rosacea is not contagious.
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