Impetigo
I was planning to go to a pool with my family today, but my youngest daughter got a blister on her arm, so my wife went to a hospital with her to see a doctor. Unfortunately, she was diagnosed as an impetigo. Without saying that, she couldn't go to the pool. Therefore I went there with rest of my daughters and my wife took care of her. When we went back home, she seemed that she didn't mind about it. I was relieved a little. I really hope she will get better soon.

I was planning to go to a/the pool with my family today, but my youngest daughter had got a blister on her arm, so my wife went to a hospital with her to see a doctor.
Unfortunately, she was diagnosed as an with impetigo.
Without saying that It goes without saying she couldn't go to the pool.
Therefore I went there with rest of my daughters and/while my wife took care of her.
When we went back home, she it seemed that she didn't mind about it.
Unfortunately, she was diagnosed (with) (as having) impetigo.
That being said, she couldn't go to the pool.
Therefore I went there ( this is proper use, but "to the pool" would be more "normal" speaking to a native English speaker) with rest of my daughters and my wife took care of her.
She's almost fine now. Thanks. :D
I was planning to go to the pool with my family today, but my youngest daughter had a blister on her arm, so my wife went to the hospital with her to see a doctor.