How much of a difference you are seeing now really depends on how much was done during your surgery. In most cases of rhinoplasty in African Americans, the nose was narrowed enough that you should be seeing some improvement at this point. It may still look puffy without as much definition as there will eventually be, but by 2 months you should be starting to appreciate the change. If the goal was a less dramatic change, it will take longer to see the intended result. Talk to your surgeon. We have found that early intervention works best to help thicker skin settle faster.
High dosages of oral corticosteroids taken daily for prolonged periods of time can have serious systemic side effects including bone loss ( osteoporosis), increased risk of infections and diabetes and cataracts, thinning of skin, stretch marks, increased facial/body hair growth, acne, fluid retention, weight gain with redistribution of fat (fat deposits on back and face, thinning of limbs), muscle weakness, decreased resistance to infections, stomach ulcers, mood swings, insomnia, suppression of the body's own production of cortisol, etc.
How often cortisone injections are given varies based on the reason for the injection. This is determined on a case-by-case basis by the health care practitioner. If a single cortisone injection is curative, then further injections are unnecessary. Sometimes, a series of injections might be necessary; for example, cortisone injections for a trigger finger may be given every three weeks, to a maximum of three times in one affected finger. In other instances, such as knee osteoarthritis, a second cortisone injection may be given approximately three months after the first injection, but the injections are not generally continued on a regular basis.