1995 Honda Civic Distributor oxydation\rough running of eng

Hi, I recently discovered, by a bad surprise that a cylinder wouldn't fire so. Looking for the problem, found that there was formation of grey-green oxidation inside my distributor cap, a little everywhere (rotor, coil) but moslty on the pins that distribute the electricity to the wires. Cap and rotor are almost new, only a coupe of months. Not craked, good rubber seal, now brand new rotor. But still if I don't clean it after a couple of days, oxidation acumulates and mt cylinder keeps going on and off. I know there may be a little less compression on that one but when it's clean; it running great exept that now it idles low. Can you help me! I live on the west coast and got to make it to the east coast in a month :S