Summer Seasonal Flare-Ups: Why Some Chronic Conditions Worsen While Others Improve (and How to Cope Naturally)

As summer stretches out its golden arms, many of us welcome longer days, warmer temperatures, and a burst of vitality. For some, the season offers genuine relief—less stiffness, better moods, and a freer flow of energy. But for others, particularly those navigating autoimmune or chronic health concerns, summer’s heat and environmental shifts can stir up unwanted symptoms and setbacks.

At Little Bird Wellness, we support individuals through seasonal changes with care plans that honour your unique experience. This guide sheds light on why some conditions improve in the summer while others flare—and offers natural strategies to help you manage them wisely.

Conditions That Often Improve in Summer

For some, summer is a season of healing. Seasonal Affective Disorder (SAD) often lifts as longer daylight hours support better serotonin balance, helping stabilize mood and circadian rhythm. Those living with arthritis may find that the heat reduces joint stiffness and inflammation, allowing for more movement with less discomfort. Individuals with eczema or psoriasis sometimes benefit from increased exposure to sunlight, which can reduce skin inflammation and help manage flares. However, it’s worth noting that overexposure, sunburn, or heat-induced sweating can still trigger symptoms in some people.

Conditions That May Flare in the Summer Heat

Summer can be particularly challenging for individuals with Multiple Sclerosis (MS). Even modest increases in core body temperature can intensify neurological symptoms—a phenomenon known as Uhthoff’s phenomenon. This can lead to temporary increases in fatigue, muscle weakness, visual disturbances, coordination problems, and cognitive fog. According to a 2021 study published in Neuroepidemiology, warmer climates were associated with a measurable increase in MS relapses, particularly when temperature and humidity rose sharply (Tsioufis et al., 2010).

People with Raynaud’s Syndrome may experience discomfort in summer not from heat, but from air conditioning. The sudden shift between outdoor heat and cold indoor environments can trigger vasospasms—causing pain, tingling, and colour changes in fingers and toes.

Asthma tends to worsen in the summer due to increased pollen, pollution, and humidity. A 2021 case-crossover study from Denmark highlighted the connection between outdoor air pollution and asthma exacerbations in children, underscoring the importance of air quality in symptom management (Hjortebjerg et al., 2021). Adults may face similar environmental triggers, especially during outdoor exercise.

Those living with Inflammatory Bowel Disease (IBD)—including Crohn’s disease and ulcerative colitis—may experience increased summer flares due to travel, dietary changes, and dehydration. Heat stress is believed to influence gut permeability and immune response, aggravating symptoms like abdominal pain, fatigue, and diarrhoea.

Lastly, seasonal allergies are at their peak during summer. Grasses, moulds, and weeds all produce pollen during these months, leading to sinus congestion, itchy eyes, post-nasal drip, and fatigue. For some, this inflammation may also trigger skin flare-ups or exacerbate asthma.

Naturopathic Strategies for Managing Summer Flares

Navigating the summer heat with a chronic condition doesn’t mean giving up your seasonal joy—it just means approaching wellness with intention and awareness.

Begin by focusing on temperature regulation. Lightweight, breathable clothing such as cotton or linen helps keep your body cool. Taking breaks in the shade, using cooling cloths, and limiting activity during the hottest parts of the day can help you stay comfortable. For those sensitive to air conditioning, like individuals with Raynaud’s, carrying acardigan or  light gloves can soften the transition from hot to cold environments.

Staying hydrated is essential. Beyond simply drinking more water, incorporate hydrating foods like cucumbers, watermelon, and leafy greens. Add electrolytes—either through powders, coconut water, or mineral-rich broths—to maintain proper cellular function and reduce muscle cramps and fatigue.

For inflammatory and autoimmune conditions, cooling herbs and anti-inflammatory nutrients can provide vital support. Turmeric, ginger, and boswellia may help manage systemic inflammation, while omega-3s (from flax, fish oil, or algae) support the immune response. Herbal teas like nettle, hibiscus, and peppermint are naturally cooling and anti-inflammatory.

Digestive support is another key area, especially for those with IBD. A well-balanced probiotic, alongside fiber-rich seasonal vegetables, can help support gut microbiota. Maintaining a consistent meal routine—even when travelling—helps the digestive system stay steady under stress.

Allergy sufferers may benefit from rinsing off after time outdoors, using air filters indoors, and including natural antihistamines like quercetin, nettle, and vitamin C in their wellness routine.

Lastly, remember the importance of rest. Heat-related fatigue can sneak up on even the most seasoned summer-goer. Try adjusting your schedule to include activities in the early morning or evening when it’s cooler, and prioritize restorative sleep.

Ready for a Personalized Plan?

Each body responds differently to seasonal change—and there’s no one-size-fits-all answer. If summer has you feeling off-balance or flaring, I’m here to help you navigate it with care, clarity, and personalized support.

Let’s create a natural plan that helps you stay cool, energized, and well—this season and the next.

Book Your Consultation Today

References:

1. Hjortebjerg D, et al. Outdoor Air Pollution and Asthma Exacerbations in Children in Denmark: A Case-Crossover Study. Int J Environ Res Public Health. 2021;18(11):5962. https://www.mdpi.com/1660-4601/18/11/5962

2. Tsioufis K, et al. Mediterranean Weather Conditions and Exacerbations of Multiple Sclerosis. Neuroepidemiology. 2010;35(2):142–147.  https://karger.com/ned/article-abstract/35/2/142/210818