Swallowed saline??

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So I was getting ready to clean my sons nose out, he was stuffy, and I had the bottle and he got all crazy while I was squeezing some drops in, kicking etc, and it squirted in his mouth! It was a visible stream so it may have been a lot :( hes only 3 months and he didn't seem upset but I know salt is bad for babies kidneys but I'm not sure how much is in those. It was the Little Remedies Saline. I'm probably just being insane lol should I keep an eye for weird reactions? Or am I overreacting lol