Loosing the will too live a bit here.
DS has for the last few nights been really bad with sleep, he is cutting molars so I think it's partially that but I'm exhausted! He went to bed eventually at 9:35pm, he then woke up at 11pm and again at 12am and just screamed and screamed. I ended up bringing him down as he was inconsolable.
He had some calpol for teeth then we gave him some warm milk at about 1am and stared bedtime again. Once again screamed and screamed so I sat downstairs with him until 2:30am. He fell asleep on me so I carried him up and put him down. Walk out the room and he starts screaming again. At this point DP came in and got him off at about 3am.
He then woke again at about 4am and we've been downstairs since as he just screams in his room and I'm concerned about the neighbours. 

I don't know what to do. Any advice?