I am 70 years old. I got bursitis in my right hip after climbing ...

I am 70 years old. I got bursitis in my right hip after climbing up and down a ladder during a kitchen remodel. The doctor gave me a shot of Kenalog in my sore hip and within a week I had a small lump at the injection site. Within a month it was the size of a walnut. The doctor gave me 2 different doses of antibiotics followed by surgery to remove the lump. I went into shock during this simple surgery and was in bed for a week. Less than a month later I started experiencing severe hot and cold flashes. After $250 blood/urine tests, the doctor said I was going through the 'change' again and I am now on Premarin (hormone) At 70 years old??? Why? In addition, the scar from the surgery is still red and inflamed and it's been 6 weeks. /my surgery