Cell phone speaker display dirty?

A wonderful good day to everyone here,

Thank you in advance for reading and for your help. 😉

Well, it was a stupid thing, my friend gave me some Kinder chocolate and I put it in my trouser pocket, it was warm and after 2 hours it melted and I, silly me, put mine in there, 30 minutes later I took my phone out and well😅 phone was full of chocolate and the speaker at the top of the display (iPhone) was full of chocolate and now I'm wondering how I can clean it because my phone sounds like a rubbish dump when I play something haha.

stupid story but thank you for any help <3