Welcome. I've found that bump guard / bump control both helped me a lot with irritation and redness. I also learned to skip using it occasionally. I've also learned that "no pressure on the blade" is a really big thing (and that's why I like my HB). My biggest failing is going over troublesome places too often - then I suffer with the irritation. I do my neck with my face in the shower, followed by the rest at the sink.
welcome and well-done!
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