We use Ashton and parsons teething gel. Some teething gels aren't suitable until after 6 months so make sure you check. On bad days we also use calpol. Anything the can chomp on.
Yes my little boy has been really unsettled with it. we use nelson's teething powder and have also been putting teething "toys" in the fridge then giving him them xx
Bonjela Calpol Teethe powder which numbs there gums