This is a chronic condition that will probably recur every year, perhaps for a lifetime. Therefore, it is important to learn how to control it. The best drug for hay fever is an antihistamine. It will relieve nose and eye symptoms. Your child needs the antihistamine recommended by your physician.
Symptoms clear up faster if antihistamines are given at the first sign of sneezing or sniffing.
For children with occasional symptoms, antihistamines can be taken on days when symptoms are present or expected. For children with daily symptoms the best control is attained if antihistamines are taken continuously throughout the pollen season. The main side effect of antihistamines is drowsiness. If your child remains drowsy, continue the drug, but temporarily decrease the dosage. Your child should become tolerant of the regular dosage in 1 to 2 weeks.