Q. I started my tooth whitening programme last Tuesday (from my dentist)and my teeth are ultra sensitive now which they were not before so I would like to know if this will fade once treatment ends in 8 days? Plus the gel has leaked over the top of the plate and I could feel it going down my throat all night – will it cause me any harm given I apparently have Silent Reflux according to my Dr? I can’t ask my dentist cos they are shut till Monday and I am suffering now! I also have a sore throat now. Any advice gratefully received!Thank you!