The spokes need to be tightened and the wheel needs to be trued. This requires the wheels removal from the bike. Most places will likely want to do it sans tire/tube. Twisting of the spoke nipples with pressure from the tube behind them can yank on the rim strip. Guarenteed, there's also rust on the inside of the rim that should be removed too. It sneaks in past the spoke nipples.
If you have this done, and keep a check on spoke tension, this should never have to be done again.
“Peter, arson is a serious crime. It's not like smuggling Oriental hookers into the country, in steel drums........” ~ Glenn Quagmire~