I went to the ER last night and found out I had swelling in my gums/lip from an abscess. They gave me antibiotics, and about an hour after getting out of the ER, I tasted pus/blood in my mouth. I googled it and found that I could just spit it out and rinsed with warm salt water for an abscess that bursts on its own. I'm going to the dentist tomorrow to have my abscess drained and have a tooth pulled. Should I just wait a day before going to the dentist, or do I need to go back to the ER?