Can Natural Antihistamines Help My Allergies?

Yes, natural antihistamines can absolutely help with your allergy symptoms by blocking and preventing histamine activity.
Probably the best known natural antihistamine is Vitamin C. According to the alive.com  article, "Common Allergies, Uncommon Remedies" by Leigh Broadhurst, PhD , Vitamin C "is a powerful antihistamine that does not cause side-effects".  Unlike many over the counter medications that can cause things like drowsiness and dry mouth.
Vitamin C actually prevents the formation of histamine unlike antihistamine medications that only take affect after the histamine has been released.

You can find some great food sources of Vitamin C in vegetable, cranberry and tomato juices as well as citrus fruits, peaches, raspberries, mango, kiwi, bananas, strawberries, papayas, elderberries, loganberries, honeydew, cantaloupe, pineapple, blackcurrants, guavas, tomatoes, lettuce, kale, parsley, brussels sprouts, broccoli, spinach, mustard greens, watercress, green peas, black-eyed peas, new potatoes, sweet potatoes, rutabaga, yellow summer squash, asparagus, turnips, cauliflower, white, red and green cabbage, green sweet peppers, red bell peppers, cayenne pepper, green onions, and radishes.

Quercetin supplements are another option for a natural antihistamine but with the added benefit of also being an anti-inflammatory.  You can find Quercetin in other food sources besides citrus fruits. Foods like onions, legumes, tea, apples, parsley, broccoli, tomatoes, lettuce, berries, and my personal favourite wine all contain Quercetin.

Bromelain supplements have also proven to be very helpful by thinning mucus and acting as an anti-inflammatory in the throat, sinus, and nasal passages.  According to the webmd.com article, "Natural Allergy Remedies" by R. Morgan Griffin, Bromelain maybe "particularly useful when added to drug treatment for sinus infections."

It is very important to note however, that if you are sensitive or allergic to pineapple (Bromelain), citrus fruit (Quercetin supplements) you should avoid these types of supplements. As always check with your Doctor and your Pharmacist if you have any questions or to learn of any possible interactions with other medications you may be taking.

You can also incorporate foods in your everyday diet that contain natural antihistamines.
Check out the list below for some of these food and herb sources.

• Watercress
• pea sprouts
• garlic
• Pomegranate                                                            
• apples
• capers
• Mangsteens
• Peaches
• Black rice bran
• Mung bean sprouts
• Ginger
• Turmeric
• peppermint
• Chamomile
• Tarragon
• Thyme
• Holy Basil

sources:

www.umm.edu/health/medical/altmed/supplement/quercetin

healthyandnaturalworld.com/natural-antihistamines/

webmd.com/diet/features/allergies-allergy#1

alive.com/health/common-allergies-uncommon-remedies/
www.gaiam.com/blogs/discover/natural-antihistamines-3-foods-that-fight-allergies