Liver Cleanse and Roccutane

Hi,

I have acne on my back and chest which I am pretty sure Roccutane will remove for good (hopefully). I also have rosacea on my nose where it goes red/pinkish and lots of pores and whites heads (which I think a cleanse will cure)

So now I am not sure which order to do it in, Should I do

1. Roccutane then Liver Cleanse
- Worry is that roccutane will fix my spots on my back, but if I do Liver Cleanse is may kick something off and bring my spots back?
2. Liver Cleanse then Roccutane
- Worry is that roccutane may worsen the liver after the cleanse?

So the questions I have are:
1. Will doing a Liver cleanse weaken the liver so if roccutane was taken afterwords would it do more damage?
2. Will doing a Liver cleanse after Roccutane reverse some of the effects of roccutane and bring the acne back?
3. What do you recommend?