DO you suffer from bouts of frequent sneezes, itchy and runny nose? Do you often wake up sneezing in the morning? Does sneezing and runny nose occur during a particular weather or when there is change of weather? Or, do you wheeze or do your eyes feel itchy with sneezing and runny nose? If you have some or all of these symptoms then you may be suffering from nasal allergy.Nasal allergy, also called allergic rhinitis or hay fever or pollinosis, is an allergic reaction of the body (mainly the upper respiratory tract and eyes) to certain substances – allergens – that we breathe in. The main allergens are pollens, molds, animal dander and dust.Allergy is nothing but an over-sensitisation of our defence system. This means that our immune system (defence system) starts reacting to a substance which is otherwise harmless to our body. In other words, it is a misdirected immune attack.Pollens are usually the main culprits.Homeopathic treatment is based on the principle of “like cures like”. This means if a substance that in its raw state produces a disease condition also has the ability to treat similar symptoms when given in diluted and activated (potentised) form.Thus, a lot many plants whose pollens are the known culprits for this kind of allergy are being used in homeopathy to treat allergic rhinitis. By giving a substance that has similar manifestations, homeopathy is able to optimise the already over-sensitised immune system.Two medicines which represent new advance in homeopathy are Galphimia Glauca and Histaminum Hydrochlo-ride.A US study found Galphimia Glauca to be highly effective in treating allergic rhinitis. Many other very effective plant-based medicines have also been introduced during the last few years: Cardiospermum Halicacabum and Amni Visnaga, for example. Conventional homeopathic medicines like Allium Cepa , Sabadilla , Arundo Mur, Ambrosia and Aralea are also very effective. It is important to remember that homoeopathy is a system where the treatment is based on the patient’s individual symptoms. Thus, each medicine has its own important place in treating allergic rhinitis. It may take a season or two to completely cure allergic rhinitis.With growing industrialisation, our bodies are changing according to the environment .A BMJ (formerly British Medical Journal) report has it that one in six people in the industrialised world suffers from seasonal pollen allergies. Pollution does not cause allergy directly, but is supposed to increase the sensitivity to pollens. In Japan, it was found that the sensitivity to pollens was high in people living in areas with high levels of diesel exhaust particles in the environment. Genetic factors are also supposed to play a role in developing nasal allergy..