Baby is cutting 4 top teeth at once and in so much pain — any tips to ease it?

My poor baby is cutting 4 top teeth at once! One has just popped through today and I can see the other 3 just below the surface. He's in so much pain though and has a temperature again. I just feel so bad because he's having a really tough time :( any tips to ease the pain? He's got Calpol for the temperature and eating ice pops to cool them down and teething gel but nothings really working.