Swollen Gum

In my 2nd trimester and this is the second time in 2 trimesters that I had swollen gum but this time it is more painful and it kept me awake at night. I can't even open my mouth fully and can't eat properly without feeling pain. So I took only 1 paracetemol to help ease the pain & I gargled with salt water this morning. Any other tips that can help ease the pain?