Bacitracin can cause topical allergies which can cause redness and itching. If that is the case, stop it immediately. You can just use regular shampoo at this time.
Determining the cost of your hair transplant procedure depends on the degree of hair loss. There are many factors that effect the cost. Your donor hair has to be examined to determine the amount of quality donor hair that can be safely harvested. The donor availability and the degree of hair...
You can do hair transplant o lower your hair line but how much lowering that is the question. To lower too much it will not look natural. Therefore it is better to see a hair transplant specialist in person to come up with a plan that both satisfies you and also will look natural.