Flashbacks are one of the most distressing and disorienting symptoms of post-traumatic stress disorder (PTSD). In a flashback, the past does not just come to mind — it feels as though it is happening again, right now. Sights, sounds, smells and physical sensations from the trauma flood back with overwhelming intensity, and for those moments it can be almost impossible to feel that you are safe in the present.

If this is your experience, please know two things. First, you are not “going mad” — flashbacks are a recognised, well-understood feature of trauma. Second, they can be managed, and with the right support they can ease over time. This article explains what flashbacks are, why they happen, and offers practical grounding techniques you can use to bring yourself back to the present. At Vitality Unleashed Psychology in Bundall on the Gold Coast, our Clinical Psychologists help people work through trauma and flashbacks, in person and via telehealth Australia-wide.

What is a flashback?

A flashback is a vivid, involuntary re-experiencing of a traumatic event. Unlike an ordinary memory, which you know belongs to the past, a flashback collapses the distance between then and now. It can range from a fleeting, intense image to a fully immersive experience in which you temporarily lose your bearings in the present moment.

Flashbacks vary from person to person, but commonly involve:

Flashbacks can be triggered by an obvious reminder or seem to arrive from nowhere. Either way, they are exhausting and frightening — and entirely treatable.

Why flashbacks happen

To manage flashbacks, it helps to understand what is driving them. During a traumatic event, the brain’s alarm system — the amygdala — is in overdrive, while the hippocampus, which normally files memories with a time-and-place tag, is overwhelmed. As a result, the traumatic memory is stored in a fragmented, “timeless” way, without the label that says this is over.

Because the memory was never properly filed as past, later reminders can cause the brain to replay it as though it were a present-day emergency. That is a flashback: the threat system reacting to old danger as if it were happening now. We explore this in more depth in our article on PTSD and the brain, and the reminders that set flashbacks off are covered in our guide to PTSD triggers.

Understanding this takes some of the fear out of flashbacks. They are not a sign that you are broken or in danger; they are your nervous system misreading the present through the lens of the past.

Grounding: bringing yourself back to the present

The core skill for managing a flashback is grounding — deliberately reconnecting with the here and now so your brain receives the message that the danger is over. Grounding works because it engages the thinking, sensing parts of the brain and gently interrupts the threat response. Here are techniques that many people find helpful.

The 5-4-3-2-1 senses exercise

Slowly name, either silently or aloud:

Moving methodically through your senses anchors you firmly in the present environment and helps loosen the grip of the memory.

Anchor to the present with your body

Press your feet firmly into the floor and notice the support beneath you. Hold something cold, textured or strongly scented — a piece of ice, a cool drink, a sprig of herb. Splashing cool water on your face or gripping a chair can send a strong “you are here, now” signal to the nervous system.

Use grounding statements

Remind yourself, gently and repeatedly: “I am having a flashback. This is a memory. The event is in the past. I am safe now. I am in [your location] and it is [the year].” Naming what is happening helps the thinking brain reassert itself over the alarm.

Slow your breathing

Flashbacks fuel rapid, shallow breathing that intensifies panic. Slow it down — breathe in for four counts and out for six, letting the out-breath be longer than the in-breath. A longer exhale gently activates the body’s calming response and tells your system it is safe to stand down.

Orient to safety

Look around and actively remind yourself where you are. Notice the walls, the daylight, familiar objects, the current date. If it helps, keep a “grounding kit” — a comforting photo, a soothing scent, a soft object, a note in your own handwriting — that you can turn to when a flashback strikes.

Flashbacks can feel frightening, but you can learn to manage them — and to reduce them over time. Book Online (opens in a new window) · Submit an enquiry

Preparing ahead and building resilience

Beyond in-the-moment grounding, a few longer-term habits make flashbacks less frequent and easier to weather.

When to seek professional support

Self-help grounding skills are valuable, but they work best alongside professional treatment — especially if flashbacks are frequent, severe, or interfering with your daily life, work, relationships or sleep. Trauma-focused therapy does more than help you cope with flashbacks; it works to resolve them at the source by helping the brain finally process and re-file the traumatic memory.

You do not have to wait until things feel unbearable. If flashbacks are a regular part of your life, that alone is reason enough to reach out.

How Vitality Unleashed can help

At Vitality Unleashed Psychology, our AHPRA-registered Clinical Psychologists provide evidence-based, trauma-informed individual therapy for PTSD and flashbacks. We help you build reliable grounding and stabilisation skills, and then, at your pace, work to reprocess the underlying trauma so flashbacks lose their intensity. Our approaches include trauma-focused Cognitive Behavioural Therapy (CBT) and EMDR (Eye Movement Desensitisation and Reprocessing), a well-established, evidence-based therapy that helps the brain file traumatic memories as past events — you can read more on our trauma and belief reprocessing page. Our overall approach to trauma is outlined on our PTSD treatment page.

We see clients in person in Bundall and via telehealth Australia-wide. Private fees apply, and eligible clients with a GP Mental Health Care Plan may access Medicare rebates — see our psychology fees page. Please note we do not bulk bill.

Flashbacks do not have to run your life. With support, they can ease. Help is available in Bundall and via telehealth Australia-wide. Book Online (opens in a new window) · Submit an enquiry

Frequently asked questions

What’s the difference between a flashback and a bad memory?

An ordinary memory is recalled with the awareness that it belongs to the past. A flashback collapses that distance — it feels as though the traumatic event is happening again in the present, complete with the original sights, sounds, sensations and fear. This happens because the memory was not fully filed as “past” at the time.

How do I stop a flashback once it starts?

Focus on grounding. Use the 5-4-3-2-1 senses exercise, press your feet into the floor, hold something cold, slow your out-breath, and remind yourself out loud that this is a memory and you are safe now. The aim is to reconnect with the present so your brain registers that the danger has passed.

Can flashbacks be cured, or only managed?

Both grounding and treatment matter. Grounding helps you manage flashbacks in the moment, while trauma-focused therapies such as CBT and EMDR work to resolve them at the source by helping the brain reprocess the memory. Many people find their flashbacks reduce significantly, and sometimes resolve, with treatment.

Should I avoid the things that trigger my flashbacks?

Some short-term care with overwhelming triggers is reasonable, but long-term avoidance tends to keep PTSD going by teaching the brain that reminders are dangerous. Trauma-focused therapy helps you approach triggers safely and gradually, so they lose their power rather than controlling your life.

Helpful Australian resources

This article is general information only and is not a substitute for personalised advice from a qualified health professional. If you’re struggling, please reach out to your GP, a psychologist, or a support service. If you need to talk to someone now, call Lifeline on 13 11 14 or Beyond Blue on 1300 22 4636. In an emergency, call 000.