I was allergic to the nickel content in many modern multi-blade razors. I had red splotches on my neck, they weren't super noticeable, but I had never had them before. Apparently this happens to a lot of people.
Here's an excellent choice. Proraso White - lovely scent, easy to lather with a nice menthol effect. Gentle, soothing skincare as well as a lot of moisturizing.
The Merkur HD (34c) is a really great razor. I use mine all the time. Just make sure you take the time to line up the blade. Sometimes when you tighten the head down - the blade will rotate a bit to one side. That makes for more blade exposure on one end vs the other and can lead to a rough shave and irritation.
Oh wow, I had no idea that was possible. I will definitely have to check that out for myself as well. Thank you for sharing.