How long do I leave apple cider vineger and 3% hydrogen peroxide on scalp?
Is it ok to use a mild conditioner to get smell of vinegar off?
Try 3- 5 minutes.
Since you are shampooing before you go to sleep, all smell should be gone the next day. Don't use conditioners, they seem to be one of the causes of SD. (mostly it is the shampoo)
You can get rid of smell by using small amounts of lavender oil mixed with tea tree oil. They smell nice and they also destroy the SD.
3. Use tree tea oil with aloe vera oil at night before I sleep.