Once the block has ended you can make helpful changes. Please read Wikipedia's blocking policy and remember that adding spam, making changes that do not have a neutral point of view, making personal attacks on others, not respecting other people's privacy, and vandalizing pages are not allowed. If you do any of these things, you will be blocked again.
If you think this block is unfair, you can ask to be unblocked by adding {{Unblock|your reason here}} below. You may want to consider reading our guide to unblock requests before requesting to be unblocked.