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Thank you for your question.
In the vast majority of cases this is not something to worry about as this may indicate a mild allergy.
As he grows older he should grow out of it.
Not something that I would be concerned about too much.
Let me know if you have more questions.
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Yes feeling cold could be indicative of allergy. Also the symptoms that he is still having some coughing also indicates that he is having allergies.
If he has not been tested for allergies I would recommend having a blood test called RAST done along with IgE levels.
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