I am sorry that your question was unanswered for a long time.
I think no expert was online during this time.
Thank you for your question.
I am Dr. Su S. and I will try my best to help you.
Yes, Aleve can be given now to reduce pain.
Zyrtec can be given if you have.
Later on, you can give Motrin.
Warm compression can be soothing.
If the pain continues, you should take him to doctor.
Throat swab test, antibiotic can be needed.
I hope this information will be helpful.
If you have any query, please feel free to ask.
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Wish his healthy life.