1) dilute it with water before using . use 1:5 ratio 1 part acv and 5 part water. Use it only once or max twice a day
2)use it only one the lips and don't let it touch the inside of the mouth
I am suffering from side effects of using a stronger concentration of acv . I used to clean my lips and inside of mouth thrice in a day with 50% diluted with water . This has caused my inner mouth to become red and also my throat is afftected. I have looked it up and this is the side effect of acv . I hope it goes away in few days.