I have been taking chantex for 3 1/2 weeks I have been smoke free for 16 days. The other day I woke up and my mouth hurt. I do not have a dry mouth but everything taste like metal or no taste I feel like my tongue is numb and around my lips on the inside hurts. I read chantex warnings it says if you get mouth blisters stop using it. I don’t want to stop I am afraid I will smoke again but my mouth really hurts. I have taken chantex before with no indication of an allergic reaction. Help I don’t know what to do.