If you have spilled liquid on your MacBook, the best solution would be to turn it off immediately and unplug it from any power source. Remove the battery (if possible) and disconnect all peripherals.
Do not try to turn the MacBook back on for at least 48 hours as it needs to dry out completely. While waiting for it to dry, you should also make an appointment with an authorized Apple service center, like Apple Lab in Dhaka, Bangladesh, because liquid damage can cause some serious issues that require professional attention.
Once you bring your MacBook to the service center, they would first assess the extent of the damage and provide you with a repair estimate. The most common problems with liquid damage are keyboard malfunction, logic board failure, and display issues.
Depending on the extent of the damage, you may need to replace some components or even the entire MacBook, which can be costly. However, Apple Lab in Dhaka, Bangladesh, provides the best solution according to customer reviews. They have professionals with expertise in handling liquid damage with a guaranteed solution.