Hello pompon,
thank you for replying me, your reply really make my day! I agree with you that after sitting for about 10mins, the burning went away. I have tried the #3 dilator last night again, the burning feel getting lesser. Hope it will be less severe when I try again and again. Target to go for the 4th dilator on next week! cross finger! we can do it, give you my support (HUG) 🙂