To be honest, I don’t think a cream or special razor will do the job for you.
I can understand you want to be smooth just like everyone else. Really I do feel you there.
But I have to remind you that we can shave smooth and close because our skin doesn’t react as if it is traumatized. It doesn’t react at all after shaving.
Your skin is different and just cannot cope with the shaving, regardless what razor or cream you use.
This problem goes beyond the “normal” range of say 1 or 2 little razorbumps once a month.
This is a serious alarm of your body saying it cannot cope with the shaving.
Seriously see a docter and talk about it, they could help you.
And check some fora focussed on folliculitis.
Good luck man.