Uses:

hayfever, allergic rhinitis, allergies, reducing allergic reactions such as sneezing, itchy and runny eyes and nose, blocked or stuffy nose, wheezy chest etc. 

Adults: 20 drops 2 to 3 times daily in a small amount of water.
Children (2-12 years): 1 drop per year of age twice daily in a little water.

Can be use long or short term.