Hot holiday sets off ‘super allergies’

PHARMACEUTICALS are warning that this year’s sweltering summer, with 2016 widely branded the hottest year on earth on record, will most likely trigger so-called ‘super allergies’.

Pharma Dynamics spokesperson Mariska van Aswegen explained weather and atmospheric temperature make a huge difference to the levels of pollen and other irritants, such as dust and diesel particulates in the air.

‘The downside of a long, hot summer is that these irritants stay suspended in the air for longer, entering the mouth or nose and landing on the delicate mucosal layer of the upper airways.

‘Once these particles land on the membranes that line the airways, the allergen diffuses into it, setting off an allergic reaction.

‘Not only could symptoms worsen, but hot conditions could result in an extended pollen season.

‘The hay fever season typically starts with trees pollinating from August until October.

‘However, grass pollen then takes over with its greatest peak from November to March.’

According to SA authorities on aerobiology, climate change will significantly increase the amount of pollen in the air with average world temperatures forecast to rise 3°C to 4ºC by 2060.

Warmer temperatures allow trees to pollinate earlier and longer than usual.

Not only is this bad news for the estimated 30% of South Africans who suffer from hay fever, but the extended hot conditions could also trigger nasal allergies in those who have not previously suffered from it.

Air pollution further aggravates the situation.

‘Pollution makes other airborne allergens more potent as some pollen-producing plants exposed to high levels of nitrogen oxide may spawn modified pollen that is more potent and can elicit a more severe allergic episode,’ Van Aswegen said.

Six sound tips

To ensure that super allergies do not get in the way of your summer holiday plans, Van Aswegen gives the following advice:
• Get pollen-wise: check the pollen forecast in your area or holiday spot to avoid being outside when the pollen count is highest, which is usually early in the morning and evening. Keep doors and windows closed during peak pollen times.

• When the outdoors beckon: apply balm or petroleum jelly around the rim of your nose, which can act as a pollen-trap.

• Travelling by plane: make sure your epinephrine injection (used to treat a severe allergic reaction known as anaphylaxis) is within date and always carry a spare. Pack these in your hand luggage along with a supply of antihistamines.

• Planning a road trip: turn your car’s air conditioner on 10 minutes before you get in the car, preferably with the windows open, which will help remove dust and mould from the air-conditioning (AC) system. Keep car windows closed when driving to prevent pollen and other irritants from entering the car.

• Staying at a hotel: bring your own hypoallergenic pillow and mattress cover or ask for an allergy-proof room where no smoking or pets are allowed.

• Avoid red and swollen eyes: protect your eyes during the day by wearing sunglasses and rinsing contact lenses to get rid of dust and pollen particles. If your allergies have left you with itchy, red eyes, then take eye-drops to reduce the symptoms.

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