Antihistamines work by blocking histamine, a chemical released in your immune system during an allergic reaction which causes symptoms and which is released when the body sees itself as “under attack” from a foreign allergen. They can come in different forms such as pills, eye drops, sprays or creams, treating a various range of symptoms.
Histallay is a great option that provides you with 24 hour relief and achieves efficacy within an hour. It has 120mg of fexofenadine hydrochloride serving as an adequate dosage for allergic rhinitis or Hayfever relief.