After aggressive Lipo, it ok to take a pill to assist with lymphatic drainage along with lymphatic messages?

The medication that you have listed is a homeopathic medication that does not have a known mechanism of action. I am not a pharmacist and can only offer an opinion, but I would guess that if you take this medication, it will not hurt but almost certainly will not help you in any way. If you are healthy, your body is very capable of healing normally after liposuction surgery. Medication assistance is not needed. And there is always a chance that the medication could have a negative effect. My best advice would be to avoid the medicine and only use what your plastic surgeon has prescribed. 

You should only take medicines given by your plastic surgeon, so you should ask him what to do  and  when. the success of your surgery depends greatly on the track after.