Most common symptoms of a reaction are: Itchy, tingly mouth, lips, or throat Very mild swelling of the lips, tongue, or throat Watery, itchy eyes, runny nose, sneezing Some people develop itching, redness, or slight swelling of the hands if they peel [chkd.org]

AVOID THE DANGER FOODS Around half will suffer an itching and/or swelling in the lips or tongue from eating celery Certain ‘healthy’ foods can cause people with hay fever to suffer other effects too, says Professor Stephen Durham, head of allergy and [dailymail.co.uk]

Swelling of the lips, tongue, and uvula, and a sensation of tightness in the throat may be observed. [en.wikipedia.org]

If, for example, you have a birch pollen allergy and eat raw apple or pear, you may experience a localized allergic reaction with mild swelling and itchiness inside your mouth. [jaxallergy.com]

More severe reactions may include dysphagia or throat swelling, but patients may also experience systemic reactions such as urticaria, rhinitis, or anaphylaxis. 58, 66 Thus, the initial general designation “oral allergy syndrome” for this phenomenon is [onlinelibrary.wiley.com]

inflammation varies with the pollen season. [ncbi.nlm.nih.gov]

The discomfort can be due to inflammation, post-nasal drip or both. Depending on how much you’re coughing, you could also develop laryngitis and hoarseness. [jaxallergy.com]

Birch pollen is the most dominant tree pollen in Northern and Central Europe and is a major cause of allergic rhinitis and, possibly, asthma symptoms. [onlinelibrary.wiley.com]

Antihistamines and allergy shots for allergic rhinitis/hay fever may sometimes help prevent or reduce symptoms associated with Oral Allergy Syndrome. [chkd.org]

Pollen of the European white birch (Betula pendula) is a considerable cause of hay fever (seasonal allergic rhinitis) in northern and central Europe. [library.wur.nl]

There are a number of studies that found that patients with allergic rhinitis or chronic sinusitis who use regular saline rinses have less bacterial load and require fewer antibiotics. [jaxallergy.com]

Development and validation of a structured questionnaire for the diagnosis of oral allergy syndrome in subjects with seasonal allergic rhinitis during the UK birch pollen season. [ncbi.nlm.nih.gov]

Coughing fits or sore throats. Allergies to tree pollen may also cause you to experience a scratchy, sore throat. The discomfort can be due to inflammation, post-nasal drip or both. [jaxallergy.com]

More severe reactions may include dysphagia or throat swelling, but patients may also experience systemic reactions such as urticaria, rhinitis, or anaphylaxis. 58, 66 Thus, the initial general designation “oral allergy syndrome” for this phenomenon is [onlinelibrary.wiley.com]

[…] apple in 80% and 47% of patients, respectively, 51% and 34% to peach, 41% and 26% to walnut, and 35% and 23% to carrot. 63, 64 Symptoms of pollen‐related food allergies typically comprise mild immediate local reactions such as itching, tingling, and angioedema [onlinelibrary.wiley.com]

Mucoepidermoid carcinoma Sclerosing polycystic adenosis Sialadenitis Parotitis Chronic sclerosing sialadenitis Sialectasis Sialocele Sialodochitis Sialosis Sialolithiasis Sjögren's syndrome Orofacial soft tissues – Soft tissues around the mouth Actinomycosis Angioedema [en.wikipedia.org]

[…] asthma‐related hospitalizations. 87 However, unlike grass pollen, exposure to birch pollen allergen did not have an impact on the lung function of children in a Swedish birth cohort. 88 Patients with birch pollen allergy may also demonstrate worsening of atopic dermatitis [onlinelibrary.wiley.com]

[…] around the mouth Actinomycosis Angioedema Basal cell carcinoma Cutaneous sinus of dental origin Cystic hygroma Gnathophyma Ludwig's angina Macrostomia Melkersson–Rosenthal syndrome Microstomia Noma Oral Crohn's disease Orofacial granulomatosis Perioral dermatitis [en.wikipedia.org]

The birch homologous group as suggested by Lorenz et al 12 contains five tree species within the order Fagales (Table 1 ). [onlinelibrary.wiley.com]

Information on gene transcription was inferred from a comparison with existing mRNA sequences and suggested that seven of these genes are transcribed in pollen. Bet ν 1 isoforms are known to vary in IgE-reactivity. [library.wur.nl]

This may suggest a reaction to the pollen itself rather than pollen related food items, with a dissemination of the inflammation within the common mucosal immune system. [ncbi.nlm.nih.gov]

Those who have more than 14 drinks a week are 78 per cent more likely to develop the sore eyes, runny nose and headaches associated with reactions to house dust mites or animal fur. [dailymail.co.uk]