You have done your best to reduce the amount of allergen such as housedust. Have you kept the dog or cat out of her bedroom? Loratadine is a good and safe antihistamine, in fact it is the forerunner of Deselex which it closely resembles.Your daughter may have reacted to the preservative in the Deselex and this could be her problem with all the other antihistamines which did not help after a while. The usual offender is a preservative called sodium benzoate. It is safe to use Loratadine for prolonged periods such as for up to 3 months.
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