I've got a 'strained' bicep tendon in my left arm, which was pretty painful but I've been resting it diligently and have been having it treated regularly with ultra sound. I can't do pull ups, rows or dead lifts, so I'm just doing light high rep machine bak exercises until it feels better, I've dropped my cycle down to 400mg test a week, and will drop down to 100mg test a week starting from tomorrow to try and get rid of some acne/zits I've been struggling with for a few months. As soon as I get my skin cleared up I'll go back on 600-800mg test depending on how I feel and work around my bad arm until it feels strong enough to train 'properly' again.
I wouldn't stay on just deca and HGH.
Only you know how bad your arm is, and of course you want it healed ASAP. I don't compete so can't advise you there, I also know that steroids won't fix the problem either-and I've had my fair share of injuries so I don't mean to sound like an asshole when I say that.
Go see a good therapist/chiro/physio whatever, I prefer chiro for primary treatment and diagnosis but physio compliments it well. Follow the instructions you get given, which are most likely to involve a rest period. YOU DO NOT WANT TO KEEP RE INJURING YOURSELF once recovery starts taking place.
You will have to train lighter than usual and remember that 'da roidz' make your muscles stronger and not your ligaments, they need time to catch up so go easy on yourself. The unfortunate truth is that, once healed this bicep is probably not going to be as robust as it once was, so just be aware that it will be more susceptible to re injury.
At the very least you can train around your bad arm and work on your legs and back etc whilst it recovers-and when it does just listen to it, and don't overdo it.
Just out of curiosity, is it your primary arm-like if you're right handed its your right arm you have injured?