Rabia Mayet | rabiamayet@radioislam.co.za

22 July 2026

5-minute read

We often blame the cold weather for allergic conditions, but the fact is that “allergies are caused by your immune system,” says Dr Suretha Kannenberg, a consultant dermatologist at the division of Dermatology at the University of Stellenbosch, Tygerberg Academic Hospital with a private practice in the Northern Suburbs of Cape Town. While most people do not die from skin conditions, they really do suffer from them. Dr Kannenberg is passionate about helping sufferers alleviate the pain and discomfort they experience daily.

According to Dr Kannenberg, there are a group of conditions that are inherited together – eczema, allergic rhinitis or hay fever, allergic conjunctivitis and asthma. Furthermore, in recent years, studies have shown a connection between the brain, skin and gut, with imbalances in the gut contributing to a variety of skin diseases. Children who present with eczema go on to develop one or all of the other skin conditions, and if eczema can be controlled, the child may be able to avoid the others, the most dangerous of which is asthma.

Coupled with psychological and psychosomatic issues, these skin conditions affect not only the child but the rest of the family as well. Allergies can significantly affect sleep, concentration, school performance and overall wellbeing if left unmanaged, and sufferers may even develop auto-immune conditions or lymphoma if the condition is not properly controlled.

Many people also struggle to distinguish between seasonal allergies, the common cold and viral infections, often delaying appropriate treatment. Whereas the flu presents with a fever and a general feeling of being sick, allergic rhinitis or hay fever presents with a feeling of itchiness, thinner mucus secretions, and even a post-nasal drip. If nasal secretions are very thick or bloody, or if your sinuses feel tender and inflamed, it may be necessary to see a doctor for a course of antibiotics. However, “there is absolutely no reason to have an antibiotic” for the vast majority of people who present with flus and colds, says Dr Kannenberg. Children who have frequent courses of antibiotics are also more prone to develop other conditions like asthma. Understanding the difference is essential because allergies are not caused by infections.

During winter we spend more time indoors with windows and doors closed, reducing ventilation and allowing allergens to build up inside our living spaces. House dust mites are the biggest allergen, and they proliferate everywhere from mattresses to pillows, carpets and upholstered furniture. Damp conditions can encourage mould growth, while pet dander remains in the environment long after a pet has left the room. Indoor dry heating like wood-burning fireplaces, paraffin heaters and even scented candles can dry out the skin, irritate the airways and cause flare ups. Thick winter bedding, soft toys, heavy curtains and poor ventilation can further contribute to symptoms.

The encouraging news is that many winter allergy triggers can be identified and reduced through simple changes at home. Better ventilation, proper cleaning methods, humidity control, appropriate skincare and knowing when to seek medical advice can make a remarkable difference. Dr Kanneberg advises that people suffering from allergies should:

• Get rid of carpets and curtains,
• Change bedding regularly,
• Replace pillows every 6-12 months
• Use gentle detergents on clothing and rinse them thoroughly after washing
• Ventilate their homes daily, even in winter.
• Use a damp cloth to wipe up surfaces and a mop on floors to trap dust.
• Avoid air fresheners and air-scents as well as perfumes.
• Moisturise skin with the correct products, especially in winter.

While skin conditions require treatment, control is essential, especially for seasonal eczema. Scratching itchy skin, specifically when done involuntarily while sleeping, leads to more inflammation, a breakdown of the skin, and even infections. Hay fever and allergic conjunctivitis can also cause itchiness in the nose and eyes, but the symptoms are easier to control. Asthma is the most dangerous and can lead to hospitalization and even death if not controlled by asthma pumps and medication.

While most kids develop eczema before the age of 5, specific groups of people like young children and the elderly are most at risk for allergic conditions. Dr Kannenberg says that these age groups should ensure correct care and moisturization of the skin.

A wonderful final reminder is that looking after our health shouldn’t only happen when we become ill. Your health is one of your greatest blessings and one of your greatest responsibilities. By caring for your body, nurturing your mind and strengthening your spirit throughout the year, you’re investing not only in a longer life, but in a healthier, happier and more meaningful one.

Listen to the full interview with Faaiza Munshi and her guest Dr Suretha Kannenberg here.