Welcome to the forum As much as the vet visit is stressful for your lovebird, it probably is going to be the best decision for your bird. You could try calling the vet to see if they can give you some suggestions. There are also online vets that give advice. You could send a picture of the area to the vet.
In the meantime, what about increasing the humidity in the room in case it has dry skin. Try misting the bird to see if that helps.
You could try adding coconut oil or red palm oil to its diet. Can you post a picture of the area?