Spilled Water on Inspiron 15 5000 Series

I spilled a little bit of water on my laptop's touchpad. I cleaned off all the surface water, but the touchpad was still malfunctioning an very erratic, and I could not successfully click the necessary string of buttons to shut down my laptop, so I just held the button in the top right corner of the keyboard until it powered off. I turned it back on and it is now working fine, but was a bit slow during the initial startup, login, and desktop display. I have not opened up the bottom of the laptop to check for any internal water or water damage because I do not trust myself with such an important process. Should I have it professionally checked out, or should I be able to conquer this problem (which may or may not actually be a problem; the keyboard, touchpad, monitor, audio, and all ports are working perfectly fine) with a couple of YouTube tutorials? Also, am I just being paranoid, or could I potentially have a real problem?