Yes, my Mom, who hasn't had pollen allergy symptoms in years, started having seasonal allergy symptoms again last year. I've also noticed my own allergies seem more difficult to manage.
Allergy Shots - the shots retrain the immune system to not react to pollens; my Allergist told me that about 80% of people who try the shots get either partial or complete relief from their allergies.
NAET - Acupuncture-based allergy treatment; works for about 80-90% of people who try it; requires periodic follow-up treatments to "tune up" after initial treatment set has been completed.
Sublingual Desensitization - Naturopathic Physicians have used sublingual desensitization for years with some very good results (similar to allergy shots, but without the needle poke).
Medications - Allergy medications such as antihistamines, steroids, mast cell stabilizers, leukotriene inhibitors, etc., can be used to manage symptoms but doses or types of medications may need to be adjusted with time as symptom type or severity changes.
The above are the most common ways to treat allergies. Some Naturopathic Physicians also believe toxicity in the body is at least partly responsible for causing allergy symptoms, so they may advocate detoxification protocols in addition to or in lieu of the above treatment options. Also, there are some herbs, nutritional supplements, and homeopathic remedies which have been known to help some individuals, but treatment must be customized to each person and therefore it is more difficult to recommend a particular treatment name or product in this type of setting.
Chronic Lyme Disease, Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication/Chemical Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, Pancytopenia, chronic malabsorption/malnutrition, etc.; G-Tube; Currently TPN-dependent.
Meds: Zofran, Pulmicort, Heparin (to flush PICC line), IV Ceftazidime (for Pleural Effusion), Colloidal Silver (used topically).