Need advice on the use of Exclamation mark, thanks teachers

[Help Wanted]

Question 1:
When using a saying verb such as "exclaimed", does the sentence which follows or goes before it must have an exclamation mark? For example: "It isn't fair!" exclaimed Sue.

Can I use "exclaimed" here?
"There's a prickle in my tongue. It hurts badly," Sue exclaimed.

Question 2:
Where should I put the exclamation mark?

"Hello, Grace! I didn't expect to see you here."
OR
"Hello, Grace. I didn't expect to see you here!"

Should I put it after "Grace" or after the word "here"?

Please advise, thanks teachers

[Tdol]

1- I don't think there are any hard and fast rules- you'll see exclamation marks and other punctuation being used. The natural place for it would be after 'badly' to emphasise the suffering.
2- I'd put it where the surprise would have been. In your example, the surprise could come in either place, depending on the context. I would probably put it at the end, though.