My wife is 9 weeks pregnant, has a toothache and a swollen jaw. I dare not give her medicine because I am afraid it will affect the fetus. But because the pain is too much for my wife to bear, I would like to ask the pharmacist for advice. Can pregnant women use Paracetamol 500 to relieve pain? When using Paracetamol, will it affect the development of the fetus? What is the appropriate dosage?