First, don’t panic — but don’t disregard it either. These things multiply fast.
Boiling Water:
Scald the maggots with boiling water. They can’t survive high heat. You will hear a little sizzle (gross but it works).
Vinegar and Baking Soda:
Combine white vinegar and hot water in equal parts and toss in a bit of baking soda. The fizzing action cleans and kills any straggler maggots. But bonus: it takes on the stink too.