Noise sensitivity and reactivity in dogs: what helps

Noise sensitivity in dogs ranges from mild unease during fireworks to full panic, including hiding, shaking, drooling, and trying to escape the house. It tends to worsen with age and repeated exposure rather than improve on its own, and the most effective approach combines gradual, controlled exposure to the trigger sound with a safe space to retreat to. Medication or calming supplements can help dogs get through the initial stages of that training when the fear response is too strong to work with directly.

What noise sensitivity actually looks like

Panting, pacing, hiding, trying to get into a bathroom or under furniture, and refusing to settle are the common signs during a specific noise event like thunder, fireworks, or a vacuum cleaner. Some dogs generalise from the original trigger and become anxious at the sound of rain (which often precedes thunder) or wind, even without the original noise present.

Why it tends to get worse, not better

Left unaddressed, noise fear in dogs is more likely to progress than resolve. A dog who has one bad fireworks night without support often reacts more strongly the following year, because the fear response gets reinforced through repeated unpleasant exposure rather than desensitised through it. A recent review of the evidence for noise fear treatment and prevention in dogs found that combining behavioural approaches with pharmacological or nutraceutical support gave better outcomes than either alone (Gruen et al., 2023).

What actually helps

Desensitisation and counter-conditioning, playing the trigger sound at a very low volume paired with something the dog enjoys, then gradually increasing the volume over weeks, is the core evidence-based approach, and it works best done well before the fear-inducing season (starting in spring for firework fears, for instance, rather than the week before November). A safe, enclosed space the dog can retreat to on their own terms, rather than being restrained or comforted intensely, also reduces overall distress in many dogs.

For dogs whose reactivity extends beyond specific noises to general environmental triggers, startling easily at everyday movement or sound, the underlying picture is closer to general anxiety than a single noise phobia, and the same gradual, low-key exposure principles apply, just across more triggers.

A dog settled into a cosy blanket-draped nook lit by warm lamp light — A safe, enclosed spot the dog chooses for itself, rather than being physically restrained or intensely comforted, tends to help more than most other single things people try.

Where calming support fits in

L-theanine has shown a measurable calming effect specifically in storm-sensitive dogs, without the sedation that comes with some anxiety medications (Pike, Horwitz and Lobprise, 2015). Broono Calm is built around L-theanine alongside passionflower, intended as a daily support that lowers the baseline level of reactivity so that desensitisation training has more room to work, not as a substitute for it. For dogs with severe, escape-risk-level panic, that's a conversation for a vet, since some cases benefit from prescription medication during the acute training period.