It is very likely that your son's wheezing episodes are caused by a virus. However he does not attend a creche and you are boosting his immunity so the chance of him having recurrent viral wheezing is becoming less likely as a diagnosis.Asthma is a strong possibility here. I suggest that you take your son to see a paediatric pulmonologist as he is really having a difficult time and you need a proper diagnosis of his illness.
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