Can you leave it in that situation alone? Our suggestion to you is atleast contact us or take him/her to the nearest vet possible if the condition is critical.
The adult flies lay their eggs in open wounds and these hatch into their larval stage (also known as maggots or grubs), the larvae feed on live and/or necrotic tissue, causing myiasis to develop. This is known as maggot wound.
A dog was severely maggot wounded in his head. He was going through extreme pain. That's why Mr. Samir Shrestha reported us and thanks to him for informing us about him. Our team reached the spot and gave proper medication to the dog. We feel the essence for him to get healed properly. We will soon go for his follow up.