You shouldn't have green sealant in the shock. If it really is sealant and not some sort of grease or oil, you should take it apart ASAP and clean the stuff out. Do this by removing the shock from the bike, taking care to support the rear wheel when the bike's in the stand. Release all air from the shock. Place the valve end reducers in a vice and twist the air sleeve counterclockwise until it comes off. At that point, you'll be able to see what's in the shock. Clean out all the gunk (whether it be old grease or whatever) and lube the seals and O-rings with new grease. (I like Slick Honey or Manitou Prep M.) Reassemble and reinflate.
(Sorry about my earlier response. I didn't read closely enough when I first wrote it.)
(Sorry about my earlier response. I didn't read closely enough when I first wrote it.)