Brief Answer:
Is there any associated redness or pain?

Detailed Answer:
Hey thanks for the question . Did the powder or peeper actually come in contact with the eye ? If yes then it is better to get an eye examination done and rule out any retained foreign bodies . Secondly if he has redness , pain associated with it then we need to rule out eye flu . If he just has eye irritation and no other symptoms then you can use carboxymethylcellulose eye drops and instill them four times a day in both eye for two weeks . Hopw my answer helps you . Regards

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