water in the wrong places
The choices aren't good. If it has to be driven daily I would pull the water pump, remove the opti and clean and reintall with new rotor and cap. And SEAL the opti
Another choice is to wait it out and hope it returns to proper running (slim but possibility)
Third choice is get a vacuum source hook it to the opti and cause air to pass through opti. MIGHT work not sure if you can rent a vacuum pump or apply a low pressure on opposite side of opti and cause air to circulate and speed the evaporation.
Driving it until it is ok is not a great option since plug cost and take time to change and of course the cost of gas.
Good luck





