19/08/2025
𝐃𝐞𝐧𝐠𝐮𝐞 𝐅𝐞𝐯𝐞𝐫
There is currently a high risk of Dengue Fever in the Pacific, affecting the islands of Samoa, American Samoa, Cook Islands, Fiji, French Polynesia, Tuvalu, Tonga, Kiribati and Nauru. Samoa has had over 2000 cases, and in the last year there have been 208 cases of dengue fever in New Zealand, all acquired overseas. There is no risk of contracting Dengue Fever in New Zealand - we do not have the mosquitos here that can transmit dengue virus, and you cannot catch this from another person. (1)
Dengue fever is mild for most people, who recover within 1-2 weeks. The incubation time is 4-10 days (which is why if you have been overseas and then get sick when you get home it can still be dengue), and symptoms last for 2-7 days. (2)
Dengue is sometimes called “bone break fever”, and as you can guess with a name like that it has a high fever, often 40°C, with muscle and joint pain, and can also include a severe headache with pain behind the eyes, nausea and vomiting, swollen glands and a rash. In severe dengue fever the following symptoms come on after the fever has gone: severe abdominal pain with persistent vomiting, rapid or shallow breathing, bleeding from gums or nose or blood in vomit it stools, increased thirst, paleness and cold skin, weakness, fatigue, and restlessness. If you have had dengue fever previously you are more at risk of severe dengue. (2)
What can you do though, if you want to escape this winter for some time in the sun?
𝑴𝒐𝒔𝒒𝒖𝒊𝒕𝒐 𝒃𝒊𝒕𝒆 𝒂𝒗𝒐𝒊𝒅𝒂𝒏𝒄𝒆 𝒊𝒔 𝒊𝒎𝒑𝒐𝒓𝒕𝒂𝒏𝒕 -
Areas with standing water, or swampy areas without flowing water are more likely to have mosquitos breeding and therefore a higher population - best to stay away. Mosquitos are most active at dawn and dusk, so be aware of your risk at these times. Covering up, with long sleeves and pants if you are going to be out when most at risk. Use mosquito nets over bedding, and if you have windows and doors with screens, keep the screens closed to prevent mosquitos getting inside. (1, 2)
Mosquitos are attracted to carbon dioxide - exertion makes you breathe harder and may make you more attractive to the mosquitos. (Sounds like a reason to relax on the beach 🏝️ instead of running through a swampy jungle…)
Insect repellant can also be used to keep mosquitos at bay. For all insect repellants you can apply them to clothing instead of skin, or to the outside of the bed, beside your pillow etc instead of your skin. Burning citronella candles or similar can also repel them from an area.
Natural options include essential oils, often in combination, including eucalyptus, tea tree, lemon, and lavender. Essential oils, even diluted and topical are not safe for everyone, particularly babies and pregnant women. Lavender is safe when diluted, if you want to use others then please consult a qualified aromatherapist.
Picaridin is a chemical insect repellant that keeps mosquitos away and makes them less likely to bite you. It is considered safe for children over the age of 2, and while it is absorbed through the skin, there appears to be no risk even with chronic dosing in animal studies - so short term use is considered safe in humans. (3)
DEET is a long standing insect repellant that may make insects unable to locate you. Up to 5% of people may have a skin reaction from DEET applied to the skin, although it is considered safe. Again, this would be best avoided in infants. (4)
𝑯𝒐𝒎𝒆𝒐𝒑𝒓𝒐𝒑𝒉𝒚𝒍𝒂𝒙𝒊𝒔 is the use of homeopathic remedies to prevent disease.
I have always used nosodes - those made from the disease. We have good evidence dating back 200 years using nosodes. I have used Dengue Fever nosode several times for people who are travelling to the pacific islands, giving the 30c weekly, starting 2-3 days before they leave New Zealand.
The other way of doing Homeoprophylaxis is using a homeopathic remedy that covers the most characteristic symptoms of disease. This is how Homeoprophylaxis was discovered - by Hahnemann, who was treating a girl with Belladonna and she was protected from Scarlet Fever when an epidemic swept through her town. (5)
One of the presentations I went to at the HRI Conference was by Debadatta Nayak from India, with a study on the effectiveness of Eupatorium perfoliatum 30c in preventing dengue fever. Eupatorium had been shown to inhibit dengue virus infection in a cell line in the laboratory, so the decision was made to use Eupatorium perf 30c weekly for 10 weeks, and collecting data about the incidence, and for those that contracted dengue the duration of fever. Eupatorium perf was 72% effective in preventing Dengue Fever, and for those who did contract it, the fever was 0.91 days shorter. The Ministry of Ayush from the Government of India now recommends Eupatorium perfoliatum 30c once daily for three days, and repeat this monthly if needed to prevent Dengue Fever. (6)
Now we have talked prevention, let’s look at 𝒘𝒉𝒂𝒕 𝒕𝒐 𝒅𝒐 𝒊𝒇 𝒚𝒐𝒖 𝒅𝒐 𝒄𝒐𝒏𝒕𝒓𝒂𝒄𝒕 𝑫𝒆𝒏𝒈𝒖𝒆.
Conventional treatment of dengue is using paracetamol as a pain killer. Ibuprofen and aspirin are not recommended because they can increase bleeding risk. Other recommendations from the WHO include rest, keeping hydrated and contacting your doctor if you notice any severe symptoms. (2)
The World Traveller’s Manual of Homeopathy (7) recommends the following remedies if you have Dengue Fever, and suggests alternating remedies. I have given further information on each one to help you differentiate them, using Boericke (8) and Clarke (9) to complete the picture.
𝑰𝒏 𝒕𝒉𝒆 𝒆𝒂𝒓𝒍𝒚 𝒔𝒕𝒂𝒈𝒆𝒔:
Aconite is a remedy for sudden onset of fever, worse at night, there can be restlessness and anxiety. Dry heat, restlessness and a cold sweat.
Belladonna is for a high fever with flushed face, may have glassy eyes or dilated pupils. Belladonna is worse around 3pm and can have a throbbing headache.
𝑭𝒐𝒓 𝒕𝒉𝒆 𝒎𝒖𝒔𝒄𝒍𝒆 𝒂𝒏𝒅 𝒋𝒐𝒊𝒏𝒕 𝒑𝒂𝒊𝒏𝒔:
Eupatorium perfoliatum is characterised by pain in the bones as if they were broken, nausea, weakness with a throbbing headache. They can have a fever or chills - and will be very thirsty prior to the chill stage. They feel better for sweating.
Rhus Toxicodendron is more of a muscle pain, with stiffness and aching that is better for movement. They are restless and want to stretch when they are feverish, and can feel like they’ve had cold water poured on them when they are chilly. Rhus Tox is better for heat.
Bryonia has shooting pains in the joints and limbs, and they are worse from the slightest movement. They may be shivering, trembling, hot, with sweat and thirst.
In some cases the temperature returns to normal, after several days, only to rebound after a day - called a biphasic presentation. In which case consider:
Gelsemium is weak, trembling and everything feels heavy - even their eyelids. They are restless with their fever, which can be intermittent with chills.
Rhus Toxicodendron with alternating fever and chills, better for movement and heat.
For severe cases, where there can be shock or haemorrhage, you could consider the following remedies. It is important to note that this needs to be in addition to, not instead of, standard medical treatment. For severe dengue fever you need medical help and possibly hospital admission.
Veratrum album is a remedy for collapse, with a pale face, blueness and coldness. They can have severe vomiting, chills, and thirst and will be extremely weak.
Carbo vegetabilis is known as the “corpse reviver”, they will be weak, cold and in a collapse state - but want to air or to be fanned. They may have ‘exhausting’ sweats with their fever.
Crotalus Horridus has shock and fatigue and trembling. They have flushes of heat and haemorrhage - can bleed from every pore, nose bleeds with dark blood, and bleeding in the gut with black vomit or tarry stools.
Lachesis is also indicated for haemorrhage, nose bleeds and bleeding gums. They have a fever, with hot flushes but icy cold feet.
If at any stage you are not sure what you should be using, or how to take it, consult with a Homeopath. If you don’t have a Homeopath, or can’t see yours at short notice, there are some awesome services like acutecarehomeopathy.com and homeopathy247.com which will connect you to a Homeopath at any time.
References:
Te Whatu Ora, 2025, August 1. Travellers urged to be on alert for dengue with soaring cases in the Pacific. https://www.tewhatuora.govt.nz/corporate-information/news-and-updates/travellers-urged-to-be-on-alert-for-dengue-with-soaring-cases-in-the-pacific
World Health Organisation, 2024, 23 April. Dengue and Severe Dengue. https://www.who.int/health-topics/dengue-and-severe-dengue =tab_1
Gervais, J. A.; Wegner, P.; Luukinen, B.; Buhl, K.; Stone, D. 2009. Picaridin Technical Fact Sheet; National Pesticide Information Center, Oregon State University Extension Services. https://npic.orst.edu/factsheets/archive/Picaridin.html.
Jackson, D.; Luukinen, B.; Buhl, K.; Stone, D. 2008. DEET Technical Fact Sheet; National Pesticide Information Center, Oregon State University Extension Services. https://npic.orst.edu/factsheets/archive/DEETtech.html
Sheffield, Fran. 2014, August 22. Homeoprophylaxis: Human Records, Studies and Trials.https://homeopathyplus.com/Homeoprophylaxis-Human-Records-Studies-Trials.pdf
Nayak, D. 2025, June 20. Effectiveness of Eupatorium perfoliatum 30C in preventing dengue fever-a prospective, community-based, open label, parallel cohort study in Delhi, India. HRI Conference, Greece.
Lessell, C.B. 1993. The World Travellers’ Manual of Homeopathy. The C.W. Daniel Company Ltd.
Boericke, W. 2000. Homeopathic Materia Medica. Presented by Medi-T. http://www.homeoint.org/books/boericmm/
Clarke, J.H. 2025. Materia Medica. Remedia Homeopathy. https://www.materiamedica.info/en/materia-medica/john-henry-clarke/index