An allergy is a misguided reaction to foreign substances by the immune system, the body system of defense against foreign invaders, particularly pathogens (the agents of infection). The allergic reaction is misguided in that these foreign substances are usually harmless.
Symptoms of an allergic reaction usually develop within a few minutes of being exposed to something you're allergic to, although occasionally they can develop gradually over a few hours.
Common symptoms of an allergic reaction include:
sneezing and an itchy, runny or blocked nose (allergic rhinitis)
itchy, red, watering eyes (conjunctivitis)
wheezing, chest tightness, shortness of breath and a cough
a raised, itchy, red rash (hives)
swollen lips, tongue, eyes or face
tummy pain, feeling sick, vomiting or diarrhoea
dry, red and cracked skin
What really causes allergic reactions is your immune system. It mistakes innocent things in your surroundings for a serious threat and attacks them. The symptoms you get are the result.
The aim of homeopathy is not only to treat allergy but to address its underlying cause and individual susceptibility. Homeopathic medicine stimulates the body’s own defence system to cope with exposure to allergens, rather than suppressing the allergic symptoms.