Gum swelling in pregnancy. Pregnancy?

My wife is pregenent of 9 weeks. A week before she was using toothpick and accidentally poke in her gum. It was not much penetrated but she got little gum swelling and pain was much. As our cunsultant docs suggested, she had just parasetamol for 3 days because it is safe to have during pregnancy. Docs told that if it dose not affect, need to visit anh dentist. Tables helped much but still she get pain some time and little swelling is present between the area of left lower and upper wisdom tooth, which comes between the teeth very often. Can any one please advise what to do? Will it go off without any tables in some day or need to visit any dentist.? Can we have any home remedies which is safe to use during pregnancy? Thanks in advance.