Sedating antihistamines in children
Immunotherapy takes some time to work and demands patience and commitment.The treatment is given by injecting gradually stronger doses of allergen extract once or twice a week at first, then at longer intervals—for example, once every 2 weeks, then every 3 weeks, and eventually every 4 weeks.Because of these possible side effects, it is best to avoid using long-term daily decongestants to control your child's nasal congestion, and instead, use another type of medication, such as a nasal corticosteroid spray.Decongestant treatment can be given topically with nose drops or sprays, but these medications have to be used carefully, and only for a short while, because prolonged use can lead to a rebound effect.Some new generation antihistamines may cause mild drowsiness especially after the first dose.Ask your child's doctor whether these non-sedating antihistamines are appropriate for your child.
For this reason, it's best to give the dose in the evening.
As with any medications, over-the-counter products should be used only with the advice of your child's doctor.
Antihistamines, the longest-established allergy medications, dampen the allergic reaction mainly by suppressing the effects of histamine (itching, swelling, and mucus production) in the tissues.
Allergy injections are often continued for 3 to 5 years, and then a decision is made whether to stop them.
Many children do fine after the shots are stopped and have little or no return of their symptoms.