Yes. Dova is made with just two natural ingredients — potassium iodide and fulvic acid — and is designed for daily use. It's drug-free, non-drowsy, and won't cause rebound congestion. Many healthcare workers use nasal iodine before every shift, year-round. Two sprays per nostril, once or twice a day, is all you need.

Dova is a topical nasal spray, not a dietary iodine supplement. The amount of iodine delivered to the nasal passage is minimal compared to oral iodine tablets. That said, if you have a diagnosed thyroid condition — including Hashimoto's, hyperthyroidism, or are taking thyroid medication — we recommend consulting your GP or endocrinologist before use.

Dova is formulated for adults and children aged 12 and over. For younger children, please consult your paediatrician before use. Many parents in our community use Dova as part of a before-school and after-school routine for their older children during flu season.

Potassium iodide is not the same as iodine contrast dye used in medical imaging, and shellfish allergies are typically caused by proteins in the shellfish — not iodine itself. However, if you have a known sensitivity to any form of iodine, we recommend speaking with your doctor before use. If you experience any irritation, discontinue use immediately.

Two sprays per nostril. We recommend using Dova before leaving the house, after returning home from high-exposure environments (offices, schools, public transport), and before bed. During flu season or periods of high exposure, you can use it two to three times a day. It takes less than five seconds.

Each application provides up to 4–6 hours of nasal protection. That's why we recommend spraying before you enter high-exposure environments — commuting, the office, school pick-up, flights, or crowded events — so you're covered when it matters most.

Most nasal sprays on the market use povidone-iodine — the brown antiseptic you've seen in hospitals. It works, but it stings, burns, and can irritate the nasal lining with daily use. Dova uses potassium iodide, which is the same form hospitals trust for pre-surgical nasal decontamination. It's gentler, designed for daily use, and doesn't cause the burning sensation associated with povidone-iodine sprays.

Iodine has been used as an antimicrobial in clinical settings for over a century. Nasal iodine has been shown in laboratory studies to neutralise germs on contact by disrupting viral lipid membranes. Hospitals routinely use iodine-based nasal decontamination before surgeries to reduce infection risk. While consumer-use studies are still emerging, the clinical foundation is well established — which is why healthcare workers have been using nasal iodine personally for years.

Dova is designed as a preventative — it works best when used before exposure, not after symptoms have already developed. That said, if you've been around someone who's ill and want to reduce the chance of catching what they have, spraying as soon as possible after exposure is a sensible step. It's not a treatment or a cure — it's a shield.

We offer a 180-day money-back guarantee — no questions asked. If you don't feel more protected this flu season, simply contact us and we'll refund your purchase in full. We also offer free shipping on all orders. You're not risking anything by trying it. The only risk is going into flu season without it.