Why your hayfever keeps getting worse and what to do about it
I only started getting hayfever when I moved to Ireland. For years I did not even know what it was. The first two weeks of June would arrive and suddenly my eyes were itching and swelling, my head was pounding, my nose was completely blocked and I felt like my immune system had declared war on the outdoors.
Looking back I know exactly why it started when it did. I arrived in Ireland carrying a significant load of stress and grief, and perimenopause was beginning to make itself known at the same time. A nervous system already primed and on high alert, a hormonal environment in flux and an immune system that had been running in reactive mode for longer than I had realised. Pollen was just the thing that tipped it over the edge.
This is the part most hayfever advice completely misses. The immune response is never just about pollen. It is about the terrain the immune system is operating in.
The terrain argument
A nervous system chronically primed for danger will treat any stimulus as a potential threat and respond faster and more severely than the situation warrants. Pollen lands on the nasal mucosa and instead of a measured, proportionate response, the immune system fires as though it is under serious attack. The histamine flood, swelling, itching, gunky eyes and blocked or streaming passages, all of it is the immune system doing its job in an environment where the threat dial has been turned up too high for too long.
You may think that the histamine response is the cause and so reach for antihistamines, but that simply signals that there are now no defences. Histamine is not a cause, it is an action. Temporary relief, sure, but the long term message is more drawn out and amplifies future responses.
Histamine is a chemical messenger doing exactly what it was designed to do. The problem is not the response. The problem is that it is wildly out of proportion to the actual threat. Antihistamines block the downstream symptom but send no signal back upstream. They do not recalibrate why the immune system classified pollen as dangerous in the first place. Mast cells have receptors for stress hormones. When the HPA axis is chronically activated, their threshold for firing drops and they release histamine more readily in response to stimuli a well-regulated immune system would simply ignore. This is why hayfever often appears or worsens after a period of significant stress or hormonal change. The pollen is the same. The terrain is different.
The trilogy
The framework I always return to is the digestive system, the immune system and the nervous system. They are not separate. Roughly 70 per cent of immune activity lives in and around the gut wall. The microbiome directly regulates immune tone, including how aggressively the immune system responds to environmental triggers like pollen. When the gut is dysbiotic, inflamed or running on a low diversity diet, the immune system loses its calibration and hayfever symptoms tend to be more severe and harder to manage.
Recalibrating the terrain is where lasting change lives. Addressing the nervous system, the microbiome and the inflammatory baseline addresses the message itself rather than suppressing the messenger.
The protocol that changed everything for me
Over the years I have brought my own symptoms from genuinely debilitating to almost nothing. Here is what actually made the difference.
Nettle, elderflower and hawthorn tea is my daily June ritual. Nettle is a natural antihistamine, quercetin-rich and deeply anti-inflammatory. Elderflower supports the mucous membranes and has a long traditional use for upper respiratory symptoms. Hawthorn brings antioxidant and circulatory support. Together they are gentle, consistent and cumulative.
Local raw honey consumed daily in the weeks before and during hayfever season gently exposes the immune system to small amounts of local pollen, encouraging tolerance rather than reactivity. Coconut oil applied around the nostrils can help trap pollen before it reaches the mucosa.
CBD oil supports the endocannabinoid system, the body’s internal communication network and the intermediary that helps the nervous system talk to the cells calmly and proportionately. When this system is functioning well the nervous system does not need to scream to get a response and the cells do not overreact to what they hear. CB2 receptors found on mast cells are directly involved in regulating histamine release, making CBD a genuinely targeted tool in the hayfever picture.
The neti pot is unglamorous and completely effective. Daily nasal rinsing with saline physically clears pollen from the nasal passages before it can trigger a response. The learning curve is about three days and the results are immediate.
Pine bark and sea buckthorn are two of the most underappreciated tools in the hayfever picture. Pine bark inhibits the same inflammatory pathways that drive hayfever reactivity, making it a genuinely targeted intervention. Sea buckthorn provides omega-7 and antioxidant compounds that support mucous membrane integrity, exactly the tissue under attack during hayfever season.
Feeding the microbiome is non-negotiable. Fermented foods daily, abundant fibre from chia seeds, fruits and vegetables, reducing mucous-producing foods like dairy and highly processed grains during peak season. Anti-inflammatory foods do the same work from a different angle. Ginger, turmeric, quercetin-rich foods like onions and apples, dark leafy greens, and reducing the foods that thicken and slow lymphatic and mucosal clearance.
The thing that changed everything
Infrared nasal lights. I know. It sounds like something from a science fiction film. But the research on near-infrared light and its effect on inflammation is substantial and growing, and the clinical results I have experienced personally and seen in clinic are impossible to ignore.
Near-infrared light at the specific wavelengths used in nasal devices penetrates the nasal mucosa and the tissue beneath it, directly reducing histamine release, calming mast cell reactivity and lowering the local inflammatory response in the nasal passages and sinuses. The eyes, the headaches, the blocked passages, all of it responds. I have had one in the car, one by my bed and one in my handbag for the past several years. During the first two weeks of June it goes in for a few minutes morning and evening and the difference is significant enough that I notice immediately on the days I forget.
The research on near-infrared photobiomodulation covers conditions including long COVID brain fog, fibromyalgia, major depression and migraines. The anti-inflammatory mechanism is consistent across all of them. In the nasal passages, where the tissue is thin and the target is close to the surface, the penetration is highly effective and the results are fast.
The nervous system ties it all together
A regulated nervous system means a calibrated immune system. When the HPA axis is not chronically activated, the immune response to pollen stays proportionate. The somatic practices, the craniosacral sessions, the breathwork and the nervous system regulation work are not separate from managing hayfever. They are part of it. The terrain determines the response. Tend to the terrain and the response changes.
If hayfever has been derailing your June and you have only ever addressed it with antihistamines, there is a whole layer of support available that works with your biology rather than suppressing one part of it.
Sessions are available in Kinsale, at The Natural Clinic in Cork and online. Book your first session at here (or here for The Natural Clinic on Thursdays only) or get in touch and tell me what is going on.
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