HCG?! What are you not man enough to recover on your own you pussball? (jk, or srs ur call) I am of the camp that thinks taking A COMPOUND to recover and stimulate LH function isn't exactly letting your body recover naturally is it? Serms and AIs accomplish something totally different, but there are two options when using HCG:
Keeping the boys in the barn, or , taking HCG throughout cycle. You are sending your body two conflicting signals when you do this, so some advise against it.
Using HCG to recover post cycle, which, in my honest opinion seems the most logical option but there will be 2 more to argue this against me.
Is it needed to recover fully? Depends on the cycle that was ran and your genetic potential for recovery, but long story short in most cases, No.
Does it help you recover faster? Most definitely.