<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing hip pain, arm swelling and there is an excessive growth on my body. What could be the problem?  <response>: Based on your symptoms, it seems like you are suffering from necrotizing fasciitis, a serious bacterial skin infection that destroys skin and muscle tissues. It is important to seek immediate medical attention as it can be life-threatening. 