Yummy chocolate muffin and me

I'm on a dairy free diet. A lot of sweet things like chocolate or ice cream have milk or butter in their ingredients. I can't eat that. Last night, my neighbor brought us homemade chocolate muffins. I didn't eat any, but the smell of the muffins drove me crazy. Later, In the bathroom, I realized I got chocolate on my cheek. Nobody told me about it. I was miserable.

乳製品除去中です。チョコやアイスクリームなどの多くの甘いものは成分にバターかミルクが入ってます。食べれません。
昨夜近所の人がマフィンを焼いて持ってきてくれました。食べなかったけど、犬のように匂いを嗅いで楽しみました。そのあとトイレでほっぺにチョコが付いてるのに気づきました。惨めでした。誰もおしえてくれなかった。。。

I'm on a dairy free diet. A lot of sweet things like chocolate or ice cream, has(?) milk or butter in their ingredients. I can't eat it.
Last night, my neighbor brought us homemade chocolate muffins. I didn't eat it, but I enjoyed the smell of muffins like a dog. Later, In the bathroom, I realized I got a chocolate on my cheek. I was miserable. Nobody told about that.