Allergen immunotherapy is the only treatment that alters the disease mechanism. Immunotherapy can be administered orally (as sublingual tablets or sublingual drops), or by injections under the skin (subcutaneous). Subcutaneous immunotherapy is the most common form and has the largest body of evidence supporting its effectiveness. Alternative medicine
There are no forms of complementary or alternative medicine that are evidence-based for allergic rhinitis. Therapeutic efficacy of alternative treatments such as acupuncture and homeopathy is not supported by available evidence. While some evidence shows that acupuncture is effective for rhinitis, specifically targeting the sphenopalatine ganglion acupoint, these trials are still limited. Overall, the quality of evidence for complementary-alternative medicine is not strong enough to be recommended by the American Academy of Allergy, Asthma and Immunology. Epidemiology
Allergic rhinitis is the type of allergy that affects the greatest number of people. In Western countries, between 10 and 30 percent of people are affected in a given year. It is most common between the ages of twenty and forty. History
The first accurate description is from the 10th century physician Rhazes. Pollen was identified as the cause in 1859 by Charles Blackley. In 1906 the mechanism was determined by Clemens von Pirquet. The link with hay came about due to an early (and incorrect) theory that the symptoms were brought about by the smell of new hay. References
Further reading
External links
Allergic rhinitis at Curlie
Types of Pollen Allergies
A syphilid is any of the cutaneous and mucous membrane lesions characteristic of secondary and tertiary syphilis.It appears about 10 weeks after infection. Patient may present with prodromal symptoms such as fever, acratia, myalgia arthralgia, headache, anorexia. Its eruption pattern is macular, papular,  follicular papules, or pustule, symmetrical, generalized and dense, round or oval in shape, and is red copper in color. See also
Id reactions
List of cutaneous conditions


== References ==