Do I need to replace camshaft seals? Oil seems to be leaking a lot everyday.

What is your question?

Have a '95 Tercel and see oil leaking out of the camshaft. When taken the cover off saw one camshaft without a seal and one with a sprocket. Is there suppose to be a plug in the one that doesn't have a seal? When I turn on the car a lot of oil seems to be spilling out. Wondering if all the seals needing to be replaced.