
Understanding immune response: How Your Body Defends Itself and Herbs That Help
- Jamon Henderson ~ Master Herbalist & Craftsman
- Aug 30, 2025
- 4 min read
In my time helping people navigate the herbal world, I’ve noticed that many individuals want assistance with their immune response—whether it’s overactive or not active enough. When to intervene with an immune response, such as a fever or inflammation, should be determined by the situation. For example, a fever or inflammation from a sprained ankle can be beneficial. In the case of a fever, it’s the body trying to burn out an invader; however, when it is prolonged or goes too high, it can be dangerous.

As for inflammation, if a child is running and jumping and then sprains their ankle, the ankle will swell and the child will naturally avoid putting weight on it. This allows the ankle some rest to heal. Taking the inflammation away in this scenario could cause more harm, because the child may go back to running and jumping if they feel well. In situations like arthritis, however, removing the inflammation is ideal.
Let’s get into this and help you better understand the immune response and some herbs to assist when help is necessary.
Immunity is basically the body’s ability to recognize and defend itself against harm like viruses, bacteria, fungi, or other toxins. The immune response is triggered when your body detects these and takes action to remove them. Even a runny nose is an evacuation point for an unwelcome visitor, just like a fever or cough. A healthy immune response is balanced—it reacts well enough to purge what is not welcome while also keeping you safe. Once your safety is compromised, the immune system is no longer doing its job well, and intervention is welcome in these cases.

First off, let’s explore the herbs that assist with natural immunity and gently support the immune response. These include elderberry, which is rich in antioxidants that support the body’s natural defenses. Another well-known herb is echinacea, which has a long history of being used to boost immune activity, especially during the onset of illness. Ashwagandha is an adaptogen that helps the body manage stress and supports balanced immune function. Turmeric contains curcumin and can assist when inflammation occurs as an immune response. Garlic supports immune health and has antimicrobial properties. These herbs are all fantastic for assisting immune function.

Then there are herbs known as immune modulators. They balance immunity, helping lift up a struggling or sluggish immune system while also calming down an overactive one. These herbs are amazing for supporting long-term balance and resilience within the immune system. First on this list, and a personal favorite, is reishi mushroom—once called the “mushroom of immortality” by the Chinese. Only royalty were allowed to possess this mushroom at that time. This fungus regulates immune activity, supporting the body’s defenses when needed and calming excessive responses. Reishi also promotes overall wellness, reduces stress, and supports allergies or autoimmune issues. Holy basil, another one I really enjoy (and a herb I’ll be covering in my next class), also balances immune function and makes the body more resilient to stress. Another herb that fits into this category is a berry called schisandra. I notice in nature that when looking for an immune modulator to improve immune function, the adaptogen class of herbs is full of them.

A common occurrence with an overactive immune system is allergies. When your body detects something harmless, like pet dander or pollen, and then launches a full-scale attack. When this happens, there are a few herbs for allergies that are nice to have on hand. The first is nettle—I first discovered this plant as a survival food back when I was still camping a lot. It’s highly nutritious and is a commonly known antihistamine in herbal circles. Another good plant, and a little less well known (in my experience), is butterbur. There is also a plant chemical known to reduce histamine called quercetin. This chemical is found in the skin of apples, broccoli, ginkgo biloba, capers, cherries, and even St. John’s wort.

Last but not least, inflammation has become a chronic issue for many people. This immune response is an everyday issue for some. I have a lot of experience with inflammation—it has just become a very common overreaction of a basic immune function. I find that boswellic acid, found in frankincense and myrrh, can assist with joints and inflammation, as can ginger. Devil’s claw is great for increased inflammation and is a great addition to any herbal collection. Meadowsweet and willow act like herbal aspirin and can help with inflammation as well as minor aches and pains. However, these are still NSAIDs, and if you’re allergic to aspirin, you are most likely allergic to these herbs as well. Willow was the “inspiration” for the primary chemical in aspirin.
A well-functioning immune system is all about balance—strong enough to protect, but not so strong it does harm to you. Whether you’re looking to stimulate a sluggish immune system, calm an overactive one, or ease chronic inflammation, understanding your own body’s natural immune response and choosing the right herbal allies—like reishi mushroom or convenient options like our ashwagandha, nettle, Golden Claw, Herbal Ease capsules, or Jesus Gifts cream—can help you support your immunity naturally and holistically.



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