i'm confused
did you go to a holistic dentist and then had a reaction? or did you go to a regular one?
anyways, here are some common reasons for the reactions:
1. picking up a virus in the waiting room, from staff, etc. sadly this is the issue with going to appointments
2. reaction to products used by the dentist: aspartame, preservatives, dyes, fluoride, BPA are just some of the common ingredients in products that may be used.
3. if you have metal fixtures, anything from fillings to bridges/crowns, to retainers, a cleaning will release an amount of metal. this may cause a stress and an immune-mediated reaction. flu-like symptoms are common