Prednisone depresses the immune system and one becomes more likely to get a cold or any infection.
There is no such thing as "prescribed levels for two months". Oral prednisone every day for two months is medical malpractice, except in a small village in Afghanistan where they worship the snake God and stone people to death for watching Snookie on "Jersey Shore". It's not really a rocket-ship idea.
If you are a nursing student learn about the PDR, or "Physician's desk reference" and look up prednisone and side effects.
Tell him to try drinking aloe vera, which is an excellent mild anti-inflammatory.
Excellent advice Caregiver!
My sister has to take Prednisone sometimes when her RA gets out of control. This is only for a couple of days until her RA is back under control. This med is very potent and comes with a long list of side effects. The two most common are weight gain (puffyness) and lower resistance to infections.
The aloe vera juice is a great idea too.
The other thing about prednisone is that it loses its effectiveness over time. He should not be taking it for two months in a row.