What's the best remedy to re-open belly button after Lipo?

I just had secondary Lipo on abs and flanks, but after the 1st time (long story) my belly button healed horizontally & nearly closed, possibly because of scar tissue. This time I want to make sure I get it back opened. My Plastic Surgeon said either the cotton ball and marble tricks will be effective, but can any one tell me their trick & results 1st hand? I just had surgery 4 days ago, but I want to be proactive throughout the entire process, so this will be the LAST surgery! Thanks