DE wrecks anything with an exoskeleton. You could also try some traps to get the masses under control and maybe plant some deterrent plants.
Earwigs: How to Get Rid of Earwigs or "Pincher Bugs" | The Old Farmer's Almanac
Controlling Earwigs Naturally to Prevent Damage to your Flowers and Herbs (Forficula auricularia) - William Broadhead