In the surface weaving style of surface piercing, a single piece of jewelry passes in and out of the skin multiple times. This can be done with flexible jewelry such as nylon or Tygon, or with specially bent surface bars, often called 'MadMax bars' after Samppa's studio in Finland, where this technique was pioneered.
As far as healing, it should be treated as any surface piercing. When placing these piercings care must be taken to compensate both for the motion of the anatomy as well as any volumetric changes. Especially if the jewelry is inflexible, the entire collection must be treated as a single entity.