Consider taking borax. Some people believed the demodex mites are responsible for rosacea. They may be right. But, there are others too that are not yet identified. I prefer to lump all these insect issues to just one category: nanoinsects. These insects have several weakness that you can kill them, or at least weaken them. One obvious ones is borax. The treatment can be broken down to two things;
1. Taken internally: Try 1/8 teaspoon to 1/4 teaspoon of borax in one liter of water/day. You just drink this water throughout the day. If it runs out then drink just normal water, with some magnesium added if possible. Magnesium is found in certain seeds such as sunflower. They seem to be synergistic with the vitamin D as vitamin D promotes calcium and the body needs to balance both magnesium and calcium to an ideal amount.
2. Used externally: Dog mange is confirmed demodex mites and the only treatment that effectively cured of dog mange is 1% hydrogen peroxide and borax saturated solution applied topically. Many people believe the demodex mites is the cause of rosacea. What I am sure about is it is an insect issue. The method of killing them is external application of 1% hydrogen peroxide with borax saturated solution to the face, unrinsed. It tends to cause drying. So you can apply appropriate lotions to prevent drying, such as jojoba oil, aloe vera or lavender oil.
EC: The above was copied from the Reader Q&A section on the Rosacea remedies page.