Grade: B (Good Scientific Evidence)
Therapy	Specific therapeutic Use(s)
Bromelain	Sinusitis (sinus inflammation)
Butterbur	Allergic rhinitis prevention
Grade: C (Unclear or Conflicting Scientific Evidence)
Therapy	Specific therapeutic Use(s)
Cat's claw	Allergies
Choline	Allergic rhinitis
Elder	Bacterial sinusitis
Ephedra	Allergic nasal symptoms (used as a nose wash)
Eucalyptus oil	Decongestant/expectorant
Honey	Rhinoconjunctivitis
Horseradish	Sinusitis
Kiwi	Respiratory problems (prevention)
Lactobacillus acidophilus	Allergy treatment (Japanese cedar pollen)
MSM	Allergic rhinitis
Onion	Allergies
Perilla	Allergies
Stinging nettle	Allergic rhinitis
Thymus extract	Allergy
Vitamin E	Allergic rhinitis
Grade: D (Fair Negative Scientific Evidence)
Therapy	Specific therapeutic Use(s)
Grape seed	Allergic rhinitis
Traditional or Theoretical Uses which Lack Sufficient Evidence
Therapy	Specific therapeutic Use(s)
Acerola	Hay fever
Adrenal extract	Allergies
Agrimony	Antihistamine
Alfalfa	Allergies
Alpinia	Allergic disorders
Anise	Catarrh (inflammation of mucous membrane)
Aortic acid	Allergies
Apple cider vinegar	Decongestant
Arnica	Antihistamine
Asarum	Sinusitis
Ashwagandha	Anaphylaxis
Astragalus	Allergies
Bael fruit	Catarrh (inflammation of mucous membrane)
Baikal skullcap	Allergies
Bamboo	Sinusitis
Barberry	Antihistamine
Bee pollen	Allergies
Belladonna	Hay fever
Bellis perennis	Catarrh (inflammation of mucous membrane)
Beta-glucan	Allergies
Bitter melon	Sinusitis
Black currant	Respiratory problems
Black pepper	Allergic rhinitis
Blue flag	Respiratory problems
Boneset	Catarrh (inflammation of mucous membrane)
Bromelain	Allergic rhinitis (hay fever)
Buchu	Sinus problems
Burdock	Hives
Cajeput oil	Antihistamine
California jimson weed	Respiratory problems
Cat's claw	Allergies
Chamomile	Catarrh
Chaparral	Allergies
Chia	Allergies
Chickweed	Allergic reactions
Choline	Allergy
Chondroitin sulfate	Allergies
Cinnamon	Sinusitis (inflamed sinuses)
Clove	Allergies
Coleus	Allergies
Colloidal silver	Allergies
Comfrey	Sinusitis
Copper	Allergies
Cramp bark	Allergies
Damiana	Respiratory problems
Dandelion	Allergies
Desert parsley	Hay fever
Devil's claw	Allergies
DHEA	Allergic disorders
Dong quai	Allergy
Elder	Hay fever
Elecampane	Decongestant/expectorant
English ivy	Decongestant/expectorant
Ephedra	Anaphylaxis (a severe allergic reaction)
Eucalyptus oil	Runny nose
Euphorbia	Catarrh (inflammation of mucous membrane)
Eyebright	Allergies
Flaxseed and flaxseed oil	Allergic reactions
Garcinia	Catarrh (inflammation of mucous membrane)
Garlic	Allergies
Ginkgo	Allergies
Ginseng	Allergy
Globe artichoke	Allergies
Goldenrod	Allergies
Goldenseal	Antihistamine
Ground ivy	Allergies
Guggul	Rhinitis
Holy basil	Allergies
Horny goat weed	Allergy/hay fever
Horseradish	Allergies
Hyssop	Catarrh (inflammation of mucous membranes)
Ignatia	Allergies
Jequirity	Allergies
Kudzu	Allergic rhinitis
Lactobacillus acidophilus	Hives
Licorice	Allergy
Liver extract	Allergies
Mangosteen	Anaphylaxis
Mastic	Catarrh
Meadowsweet	Sinusitis (inflammation of sinuses)
MSM	Sinusitis
Mullein	Antihistamine
Noni	Allergies
Nux vomica	Allergies
Oleander	Sinus problems
Omega-3 fatty acids, fish oil, alpha-linolenic acid	Allergies
Pantothenic acid	Allergies
Peppermint	Laryngeal spasm
Pycnogenol	Antihistamine
Quercetin	Allergic rhinitis
Rehmannia	Allergies
Resveratrol	Allergy
Rhubarb	Allergies
Rooibos	Allergies
Saccharomyces boulardii	Allergies
Saw palmetto	Catarrh
Selenium	Allergic rhinitis
Skunk cabbage	Catarrh (inflammation of the mucous membrane)
Spirulina	Allergies
Squill	Catarrh (inflammation of the mucous membrane)
St. John's wort	Allergies
Stinging nettle	Allergies
Tea tree oil	Antihistamine
Thyme	Sinusitis
Thymus extract	Allergic rhinitis
Tylophora	Allergies
Uva ursi	Allergic reactions
Vitamin A	Allergic rhinitis
Vitamin B12	Allergies
Vitamin B6	Allergies
Vitamin C	Hay fever
Vitamin E	Allergies
Watercress	Respiratory tract mucous membrane inflammation
Yarrow	Catarrh
Yerba santa	Allergies