Liz. Invisalign Day 21. I woke up to more dry coughing and then hideous dry retching so out they came…..enough is enough, this cannot be right! I couldn’t face a train journey to work coughing and heaving. After the first two weeks of getting used to them this is SO frustrating.  I contacted my dentist again who is being really good and taking my concern seriously and he arranged to speak with a representative from Invisalign today. We agreed that I would not put them back in my mouth to see how my symptoms develop – from my perspective would they go? At the end of today I am still coughing and my throat is very red, and chest a little tight but the coughing has lessoned after 12 hrs with no aligners in. I googled “systemic allergy Invisalign” and was shocked to see a long list of problems people have experienced with allergies to Invisalign……….it does suggest my symptoms could well be allergic. It feels like a reaction to something very toxic.  Why on earth don’t they recommend some kind of initial allergy test!?!! My dentist spoke to someone at Invisalign at midday and passed on details of my reaction to the aligners and they are forwarding a report to their product safety advisor who will get back to him in a couple of days. They have advised my dentist that there is an option of having trays “processed differently”  – what does that mean exactly???? and why don’t they offer the option in the first place? If I can get them in the next few weeks that would be helpful. If I still react then I will have to terminate treatment with the aligners.  I am sitting here with mixed feelings, glad to have them out of my mouth but disappointed I am not moving forward on my teeth journey and worried about what I do if this is not a viable option for me. With no aligners in I assume my teeth could move again. Right now I just want to feel back to my healthy self.