This NHS article has good tips on how to help relieve your baby's discomfort whilst they are teething, recommending what foods can help out and if you do think that your baby needs some pain relief what to use

NCT, the UK's leading childcare charity, has a similar list of advice to the NHS but is a much easier read and gives you them ranked by how effective they are!

Healthline have a wonderful article with a specific look at helping your little one sleep through the night and give you both some much needed peace