I had my teeth whitened recently (using an in-office method which I was told is similar to Zoom whitening but not quite the same as it uses LED lighting) and the experience was so painful I had to interrupt the treatment mid-way. Despite this, my gums turned very white and, although they are now pink again, they are extremely painful and there is a layer of pale skin on my gums which is peeling away and bleeding. What should I do? Please help, I am very worried. I bought Corosodyl to use but since it is coloured (and my discolour my teeth at this stage) I am rincing my mouth with salt and water. Is there anything else I should be doing? Will this cause my gums to recede?

Many thanks in advance,