That's some bad poison ivy. It usually vanishes after 4-5 days of prednisone. If you have been taking it for a few weeks (like 3 or 4) you are going to need to withdrawfrom the prednisone gradually. You will need to cut reduce your dose gradually over a week or 10 days in order to allow your adrenals to come back from the suppression caused by the prednisone.
Predinsone is simply artificial cortisol and hypercortisolism WILL cause severe hypogonadism.
If you - or anyone else - would like the commentary from the chief TRT doc of Cleveland Clinic, I believe I can find that and post it.
In fact, I have a friend whose severe hypogonadism WAS caused by hypercortisolism.
However, that said, I would vERY seriously doubt that the levels that you would be taking for poison ivy would have came even remotely close to causing it.
Hypogonadism caused by exogenous cortisol (i.e., articifical cortisol medicine, either orally or tropically) is usually from a situation where an individual is taking a very large dosage for a significantly long time.
When I was quite young we had (in our small town) a coal miner who had to retire quite early due to severe arthritis. This was about the time that prednisone was coming out ont the market. They started prescribing it to him and it was great... for several months. And then they had to up the dosage. And then again several months later. Etc., etc.
In about 2 - 3 years he had developed Exgoneous Cushing's (though back then he nor they ahd no idea of what he had) and a couple years after that he was dead... As more cases like his occurred, the doctors realized that they were simply pumping 4, 6, 8 times the amount of the maximum levels of cortisol into patients and actually giving them a (newly developed) form of Cushings!
:frustrate