https://www.google.com/search?q=anal+fistula&rlz=1C1VDKB_enUS1026US1026&sourceid=chrome&ie=UTF-8 / https://www.spirehealthcare.com/symptoms/anal-discharge/#:~:text=Treatments%20for%20anal%20discharge&text=Antibiotics%20to%20treat%20bacterial%20infections,ulcerative%20colitis%20and%20Crohn's%20disease / https://www.medicalnewstoday.com/articles/rectal-discharge#faq