My old doctor in another state had me on Kenalog 80 mg every 3.5 months. I have since moved to another state and brought along my past medical records for my new doctor. He said his program does not provide him with Kenalog and so he put me on Decadron 4 mg every 3 months. It has been a week since he gave me the shot, and my allergies are already starting to return. What is the difference between the two, and which one is better? Should I seek another doctor or can I just go to a clinic and get my shots since I have my past medical records with me?