Spilled smoothie on my iphone and the speaker has stopped working. Any fix I can do at home?

I spilled a smoothie on my iphone this afternoon. I cleaned it up immediately (my case protected the majority of my phone). Everything looked like it was working fine until a friend called me and I could barely hear her call. I think some of the smoothie might have clogged the speaker near the top of the phone (the one that you hold up to your ear during phone calls) because she sounded very muffled.

I'll take my phone to the apple store if I need to, but if there's a way for me to fix this at home, I'd love to save the time and money!

Any techies out there with some advice?

Nope take it to a repair shop.Once sugar gets on electronics especially internally you need a professional to fix it. If you use water or some other solutions you will risk doing more damage