almost 4 years later, i have the same problem.
I tried everything, but i dont know what to do
I tried razor blade, electric, with foam, without foam, ... i shave one per week, and everytime i do it i feel sick for 24-48 hours.
I dont know what to do, in my case is not chemical. I would do whatever to have a normal shave.
One thing i saw is not only about beard, is also about all the hair in my body