mamma! I'm sorry it's so rough right now. Other more experienced mammas may have great advice for you; my DS is only 8 months old. The only thing I can think of that helped me last weekend when I was in your shoes was to have DH take DS away. Far, far away. At least for a couple of hours. Maybe getting daddy time and out looking at things will calm the little one down? Or could you go for a walk with DC?
Sounds like you've tried teething remedies...the only thing that worked for us has been a combo teething necklace and gum-o-mile oil from Whole Foods. If it's possible at all tell your husband that you need emergency mamma time TONIGHT. Call him now and tell him. HTH and hugs again.