Why San Francisco’s allergies are so bad as of September


Shade, absorbing Napas…but allergies cause.

“70% of patients suffer from allergic rhinitis and conjunctivitis at the same time. 25% have rhinitis only, and 5% have mainly eye symptoms. We must not forget that many asthmatic patients have allergic rhinitis at the same time. If allergic to pollen and exposure to pollen, both conditions may be exacerbated sequentially or simultaneously.”Dr. J thinks.Orge Maspero, medical director of Sidia Foundation.in san francisco Pollen and dust from downtown mills is the scourge of thousands of inhabitants, especially Ash tree In addition to the benefits, adding some can also cause respiratory problems 35,000 specimens planted in our pots.

Maspero said “Pollen blown away by the wind” And pointed out that although patients often attribute symptoms to bananas, which produce needle-like fuzz that irritate the eyes and nose, “They are not always the cause of allergies in patients”.

“Actually, Other pollens, such as conifers, elms, maples, and ash As important if not more important cause of allergy than banana pollen”, Added allergy and immunology specialists.

In this sense, experts commented that “It is not uncommon to be allergic to different pollens, for example, trees and grasses (grasses) that are continuously pollinated, increasing the severity and duration of symptoms..

“Grass allergies are undoubtedly the most prevalent, but the frequency and severity of each type of pollen allergy varies according to the geographic region of the country”he elaborated.


For those who develop allergies only in September and October, Maspero explained, they suffer from “Seasonal allergies that should be evaluated and treated by a certified allergist“.

“In many cases, knowing in advance which pollen they are allergic to gives the option to start taking preventive medication about ten days before pollination begins. For those with severe symptoms, the best option is undoubtedly to use the impact Immunotherapy their pollen because that will keep them from having these symptoms for the next few years.”He added.

Allergy is a condition caused by hypersensitivity mechanisms, an exaggerated, inappropriate response that occurs when the body encounters an irritant or a harmless substance such as pollen.

These responses manifest clinically in a variety of ways, not only from individual to individual, but also at different stages of the same individual’s life.

The historic trees in General Bath Square are very allergy prone.

causal factors

Pollen from maple, ash, banana, elm, privet, conifer, and other trees during late August and September.
Grass pollen (different types of grasses), mid-October to early November.
Fungal spores: Indoor fungi (such as wall stains) can cause symptoms year-round, and outdoor fungi (such as Alternaria spp.) are more prevalent in late summer and fall.
dust mite.
Animal dander (pets).
There are a range of substances that, although not allergenic, can exacerbate symptoms due to their irritants, such as tobacco smoke; and too strong aromas (room deodorizers, insecticides, etc.).

In other cases, some commonly used medications, such as aspirin or beta-blockers, may exacerbate symptoms.

nasal allergy symptoms

Runny nose.
Nasal congestion (the symptom that bothers patients the most and affects their quality of life).
itchy nose
Eye redness, itching, tearing, photophobia.
Sleep disturbances lead to decreased performance and poor concentration.


It’s hard to avoid pollen. In general, windy days are the most prone to problems and it must be remembered that the pollen can cause symptoms many kilometers away.

Pets: If you have a known allergy to dogs or cats, avoid touching or visiting homes with pets.
Mites: Ventilate bedding daily, avoid stuffing buildup in the environment, and remove rugs, upholstered furniture, and objects that collect dust in children’s bedrooms.
Avoid excessive humidity in your home.
Avoid smoking.
Do not self-medicate. Physicians should always decide which type of antihistamine is appropriate for each patient, evaluating the patient’s age, type, and severity, efficacy of treatment, and potential risks.

Sidewalk Aromitos at Villa Golf in the Arena area of ​​San Francisco.

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