The most commonly used AAS in medicine are testosterone and its various esters (but most commonly testosterone undecanoate , testosterone enanthate , testosterone cypionate , and testosterone propionate ),  nandrolone esters (most commonly nandrolone decanoate and nandrolone phenylpropionate ), stanozolol , and metandienone (methandrostenolone).  Others also available and used commonly but to a lesser extent include methyltestosterone , oxandrolone , mesterolone , and oxymetholone , as well as drostanolone propionate , metenolone (methylandrostenolone), and fluoxymesterone .  Dihydrotestosterone (DHT; androstanolone, stanolone) and its esters are also notable, although they are not widely used in medicine.  Boldenone undecylenate and trenbolone acetate are used in veterinary medicine . 
Cortisone shots are generally accompanied by an anesthetic such as Carbocaine or Lidocaine. This deadens the area and indicates where the shot should be placed (the pain will go away about an hour while the anesthetic works). Most people who have reactions or allergies to cortisone really have the reaction to the anesthetic agent of the epinephrine (adrenaline), which may be in some forms of the injection. Epinephrine can cause tachycardia (rapid heart beat) in some patients. For others, the sight of a needle will cause this reaction and the feeling of being faint is often misinterpreted as an allergic reaction.
Steroid injection has been around since the early 1950s, and it remains a primary treatment for general practitioners all the way to orthopedic surgeons. Why? First of all, it offers the hope of quick relief. Second, it’s a Big Fat Cash Cow. Let’s do the math. Say you have sciatica, and you go to see Dr. Prick Butt and he says, “Not much I can do for you other than give you a steroid injection. Of course, it may take up to three of these to achieve the best results.” Three injections @ $150 per injection = $450. Now, taking into account that the average orthopedist probably sees at least 20 patients a day and works 180 days a year, that comes to 3,600 patients. If 20 percent of those patients get three steroid injections, that’s an annual income of $324,000 ($450 X 750 patients). That’s for 10 minutes of work per patient. And you wonder why things haven’t changed in more than 50 years.