What causes allergy symptoms in April?

Posted at 5:07 pm on 01/21/2015 by Powlin V. Manuel MD, MBA, MS.

Iris Flowers?

Iris is one of the very common ornamental plants in April producing beautiful flowers for a short duration. Iris flowers have been reported to be sensitizers related to skin reactions, contact dermatitis. Positive patch test reactions to iris flowers have been reported.

Iris Flowers allergy

Iris allergy

Grass Pollen Allergy

Early spring is marked by green, and that means grass pollen in the air.Allergy to grass pollen 

is commonly associated with allergic rhinitis (sinusallergy) with sneezing and blocked nose, 

allergic conjunctivitis with eyewatering, swelling of eye lids, and triggering of an asthma attack. 

Grasspollen allergy is diagnosed by skin tests or blood tests. If allergy tests showpositive 

results and if the symptoms are worse during grass pollenseason,  allergy shots are prescribed 

to help develop a tolerance to grasspollen. Recently oral allergy treatment by sublingual route 

has been introduced.

Grass pollen allergy

Grass pollen allergy

Pecan Tree Pollen Allergy

Pecan trees are producing the flowers  in April; many individuals are allergic to pecan pollen. The trees are identified by its long sickle shaped leaves, with pointed tips. Pollen is associated with sinus symptoms – sneezing, blocked nose and post-nasal drip.

Pecan pollen allergy

Pecan pollen allergy

Allergy tests are available for diagnosis of pecan pollen induced allergic rhinitis and symptoms of airway reactivity such as asthma. Allergy tests are done using skin tests and blood tests for pecan pollen allergy.

Pecan Pollen Allergy

Pecan Pollen Allergy

Pine Tree Pollen

Pine tree are starting to bloom in the Southern United States. In places where pine trees are plentiful, pine pollen could be a significant factor  causing sinus allergy symptoms. The pine pollen is too large to enter the lower  airway.  Hence, a symptom of lower airway allergy such as asthma is usually not  triggered by  pine pollen allergy.

Pine-tree-allergy

Pine-tree-allergy

Hickory Tree Pollen

Hickory Tree allergyHickory Trees are in bloom in April. If you are allergic to hickory pollen, symptoms such as sneezing, blocked  nose, runny nose,and cough appears. Allergy symptoms due to pollen from Hickory tree are very common April in those areas where the trees are present such as southern United States. The tree carries lance-shaped leaves and small nuts. Some of you may be interested in learning more about Hickory-Pollen and the different variety of hickory trees in your area. Please follow the link.

hickory tree allergy

hickory tree allergy

Allergic Rhinitis, allergic sinusitis; allergic conjunctivitis and tree pollen

allergic conjuctivitis

allergic conjunctivitis

Allergic sinus symptoms such as sneezing, watery eyes, blocked nose, post-nasal drip and cough are much more common in April compared to March. Tree pollen are   the main cause of allergy symptoms in April.

Oak Tree Pollen

Oak-tree allerg

Oak-tree allergy

Oak trees and pine trees started pollinating in March and continue to produce large quantities of pollen in air.  Different types of pollinating oak tress include: Chapman Oak, Post Oak, Swamp  Oak, Overcup Oak, Bur Oak, White Oak, Southern Red Oak, Turkey Oak, Black Oak, Northern Pin Oak, Scarlet Oak, Pin Oak, Bear Oak, etc., depending on which part of the country you live. Time of appearance of pollen in air can differ based the onset of warm weather. You develop symptoms of allergy to Oak Tree Pollen because of presence of an antibody called IgE antibody to Oak Tree Pollen, which is usually an inherited mechanism. When the pollen appears in air, and when you come into contact with them in the nose or the eyes, you release a chemical called histamine, which cause redness and itching of eyes.

Oak tree pollen allergy

Oak tree pollen allergy


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