It is a ruptured perineal abscess.. May be a sinus or fistula has been formed. Or recurrent or residual  abscess may be present.

Since you’re experiencing persistent wetness and odor around the anal area after the perianal swelling burst, it’s important to have a proper clinical examination. There could be a possibility of a fistula or a sinus, which needs to be ruled out. I’d recommend consulting a surgeon for a detailed evaluation and appropriate management.

In person examination is needed To asses the abscess, and to rule out any fistula in ano and plan further management Start antibiotics and sits bath Consult nearby surgeon