I don’t have the book in front of me right now but I had thought the Ministry of Magic took care of that - meaning they sent wizards to bring her down from the sky, reverse the spell, and cast Obliviate on her and any other muggles that may have seen her in the sky. The Ministry of Magic knew right away that Harry Potter had practiced underage magic outside of school so it wouldn’t take long for wizards to appear at the location and figure out what happened.
Some of that is discussed in the conversation with Cornelius Fudge afterwards.
I don’t have the book in front of me right now but I had thought the Ministry of Magic took care of that - meaning they sent wizards to bring her down from the sky, reverse the spell, and cast Obliviate on her and any other muggles that may have seen her in the sky. The Ministry of Magic knew right away that Harry Potter had practiced underage magic outside of school so it wouldn’t take long for wizards to appear at the location and figure out what happened.
Some of that is discussed in the conversation with Cornelius Fudge afterwards.
EDIT: The Fandom wiki mentions it https://harrypotter.fandom.com/wiki/Cornelius_Fudge#Targeting_Sirius_Black_and_rescuing_Marjorie_Dursley