Razor rash

Just wondering the best way to avoid/treat razor rash? I don’t get it often, and when I do, it’s on the lower neck. It seems random, since I pretty much shave the same way each time. Any advice? I have no acne or other skin problems I know of.

The best razor burn product on the market:
Clinique for Men - Post Shave Healer.
GUys if you aren’t using this stuff your missing out.

I’ve had some success with a product called “Tend Skin”, which is available at most beauty supply places.

shave with cold water and a fairly new razor. I would almost guarentee you wont get the burn.

Cold water? Where? Wash with cold water before, or cold water on razor, or what? Thanks