I agree with Mark's and Jo*mar's answers.

On top of their advice, you might want to consider doing an anti-inflammatory diet for a few months (no grains, no dairy products, no sugar, etc.).

I am not sure what is the science behind this (a possible mechanism is that the diet reduces upper neck inflammation, which is responsible for the relapses), but several of us on this board have tried and have had good results, particularly for the issue of sensitivity that you suffer from. Personally I am still far away from a full recovery but I am now less bothered by these daily bumps, and this improvement coincided with the diet.

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