Kenalog Birth Control Pills, Muscle Spams, Stomach Flu, Irregular Periods, High Blood Sugar

I had the shot for a bad outbreak of eczema. This was a last resort thing. I'm not usually for taking any form of medicine other than natural stuff. The doctor warned that the possible side effects would be muscle spams and high blood sugar. She never mention anything about irregular periods or weaken immune system. I just had my period 15 days before I had the shot and a couple days after the shot I got my period. I few days later I got the stomach flu. While still having my period. Then a week later I had a ear infection. I still have my period. I emailed the dermatologist explaining the symptoms I was having, she informed me that its a side effect of the shot. She failed to mention it before taking the shot. I don't want to take another drug like birth control pills to cure something a drug caused in the first place. I'm now on day 17. My period has never been irregular. I'm a healthy 30yr old. Does anyone know if this goes away on its on? What are things you can do to naturally cure this? I appreciate any advice.