I would suggest useing the search button but I will give you a breif rundown.
1. if you are concerned about infection go to a doctor. tell them ya took a shot of
b-12.
2.pct is post cycle therapy. it helps restart the natural test production.
I would not let all this freak you out but use it as a learning experience. like said above
deca, d-bol will shut down natural test production. that is why we use test. test is the main ingrediant for growth. when you take deca and shut down you will make gains, but when you come off there is no test in your system to help build and retain those gains. same goes for d-bol. d-bol is used to jump start a cycle till the test starts doing its job. long acting esters like test-e or cyp will take 4 weeks to kick in.
winny does not shut you down as hard but it will still happen. after a cycle you use pct to get the natural production going again. it is mostly clomid and nolvadex.
try a search on those, there is lots to read. it is much easier to recover from a cycle with test then without. also the cycle you are doing has back to back orals.
oral steroids contain 17aa which is toxic to the liver, that is why most people stick to 4 or 5 weeks with oral then take time off them. 17aa is added to the steroid so that the liver cant break down the drug and pass it through. taking milkthistle will make it better on your liver, also 1 gallon of water a day min.
hope this helps ya out. if ya got more questios shoot me a pm and I will help ya out the best I can