The doseage is up to you. Apply to areas of the body where theres arteries. Yes, you have to come off with something, 6-oxo is nice. I hope you're not consuming 2 grams of protein per pound of bodyweight, thats too much. For a PH cycle, try about 1.25-1.45 grams pe pound of lean body mass.
You could have found every bit of this yourself by reading around, these topics have been covered at least a dozen times.