Even a dab of hair conditioner as a pre shave can help relieve irritation. A dab of Cremo, Kiss My Face or any similar cream in a tube, used sparingly as a pre shave, can help lubricate the area and give a little more glide to the razor and less irritation.
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And I'm all for cold water, or temperate temp water, shaving. Cured a lot of problems for me.