I knew it! soon as I mention Im feeling better something happens

it may be coincidental but when i started the nortriptolin I immediately noticed a strange sharp jab in my left knee and a small lump the size of the top of the my thumb on the corner of knee cap and increasing pain. I took 25 mg of predisnone yesterday but today it started to swell and now its impossible to straighten it or walk.
The swelling is noticeable but not huge. there is extreme tenderness particularly around the lump
Now Im stuck , i cant get to a doctor cause i cant walk but can get access to a pharmacay (in asia they deliver). I did get gout a lot before neuropathy and had fluid drawn out of the same knee *gout) 2 years ago.
I was prescribed predisnone for the gout, cant tolerate colchicine.
I have no fever and no real pain unless I try to stand or move then its bad
It could be water or gout
What can I do to reduce the swelling?
p.s pretty sure it the drugs since I had the same pain when I first tried elavil but it didnt blow out.