Hello, I understand your concern for the itching and soreness in butt crack. The type of problem which you have described is most often seen in the condition Intertrigo which is the infection and inflammation of the butt crack. In my patients with your kind of problem I first and foremost suggest to maintain the best hygiene. I suggest you to wear lose cotton clothes and change your undergarments two times daily. I also suggest to take two times bath or atleast wash the area for two times so that the infection can be prevented. You can continue with the Bacitracin cream application but try to apply in least amount. An antihistamine such as cetrizine can be taken to reduce the itching. All the best.