📋 Recurring Ear Infections: Vet Visit Checklist

Recurrence is rarely a drug failure — it is usually the underlying cause never getting named. This is what to bring and what to ask so the appointment addresses that rather than resetting the infection again.

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Want to know which layer is likely being missed first? → Ear Infection Recurrence Checker

Before You Go — Build the History

Every episode written down with dates — the pattern is the finding. "A few times this year" is much less useful to a vet than "March, June, August and now". Check old invoices or your pharmacy history if memory is vague. Noted which ear each time — allergy affects the whole animal and is usually bilateral, so a consistently one-sided history pushes attention toward a foreign body, a polyp or a growth instead. This one detail changes the differential list. Recorded what was prescribed and whether it worked — product names, how long, and whether it cleared fully or just improved. A pattern of "improves then returns in three weeks" says something different from "never really cleared". Photographed the ear — ears look different by the time you get to the appointment, and flare-ups do not schedule themselves conveniently. A phone photo of the worst day is genuinely useful. Any skin signs logged, even mild ones — paw licking, face rubbing, belly scratching, a musty smell, recurring hot spots. These support an allergic primary cause. Their absence does not rule it out: ears can be the only sign of a food reaction. Seasonal pattern noted — flare-ups clustered in spring and summer lean environmental; year-round with no pattern leans more toward a food reaction. This is the single most useful clue an owner can bring. Full food list written out — main food, treats, dental chews, table scraps, flavoured medications and supplements. If a diet trial comes up, this list is where the conversation starts.

On the Day

Ears NOT cleaned for 48 hours before the appointment — the discharge is the diagnostic sample. Cleaning it away removes exactly what needs to go under the microscope, and can turn a diagnosis into a guess. Brought whatever you have been using — cleaners, drops, home remedies, leftovers from last time. Some over-the-counter products complicate the picture, and your vet needs to know what has already gone in.

Ask: The Infection Itself

"Can you run cytology today?" — a swab under the microscope, at this episode rather than only the first. Cytology is described in veterinary practice as the most valuable diagnostic tool in otitis, and recurring ears often change organism between flare-ups. "Is the eardrum intact?" — it determines what can safely be used, since some products reaching the middle ear can damage hearing. If it cannot be visualised because the canal is too swollen or full, ask what that means for the treatment choice. "Does this case warrant a culture?" — generally reserved for rods on cytology, failed treatment, or chronic cases. Rod-shaped organisms such as Pseudomonas are frequently resistant, and guessing wastes weeks.

Ask: The Reason It Keeps Happening

"What do you think the primary cause is?" — the most important question on this page. The drops treat the secondary infection; something is repeatedly inflaming that canal. If nobody has named a candidate, the recurrence has no reason to stop. "Would an elimination diet trial be appropriate?" — especially with year-round flare-ups. Up to 24% of dogs with an adverse food reaction have ears as their only complaint, so normal-looking skin is not a reason to skip the question. "Could the middle ear be involved?" — worth raising once episodes are frequent. Middle ear disease is reported in over half of chronic or recurrent cases in one summary, and it acts as a reservoir that reseeds the outer ear indefinitely. "At what point would you refer us to a dermatologist?" — asking early is not a criticism. Dermatologists have video-otoscopy and can flush deeply under anaesthesia, and they work the underlying allergy systematically.

Before You Leave & Afterwards

Recheck booked before walking out — an ear that looks better can still have organisms on cytology. The recheck is what defines the end of treatment, and booking it later usually means not booking it. Full course finished, not stopped when it looks fine — stopping early is among the most common routes to a relapse a few weeks later, and to a harder-to-treat organism next time. No leftover drops from a previous episode — the organism may be different this time, and the eardrum may not be intact. Reaching for the old bottle is understandable and is one of the more damaging shortcuts available. Maintenance plan agreed for between episodes — whether any routine cleaning is appropriate and with what, how often to check the ears, and what early signs mean "come back now" rather than "wait and see". Over-cleaning irritates the canal, so this needs to be their plan rather than a guess.

If a diet trial is on the table → Elimination Diet Trial Planner · Pet Itch Score Tracker

Frequently Asked Questions

Should I clean my pet's ears before the vet appointment?

No — leave them alone for a couple of days beforehand. The discharge is the diagnostic material. A swab of it under the microscope is what tells your vet whether they are dealing with yeast, cocci or rods, and those need different treatment. Cleaning it out first removes exactly what they need to look at and can mean a wasted appointment or a guessed prescription. Photograph the ear if it looks dramatic, then leave it.

Why does my vet need to check the eardrum?

Because a perforated eardrum changes what can safely be put into the ear. Some medications and cleaning solutions can reach the middle ear through a perforation and cause damage including hearing loss, which is why veterinary sources treat otoscopic examination as mandatory before treatment. It also matters diagnostically: middle ear disease acts as a reservoir that reseeds the outer ear, and is reported in over half of chronic or recurrent cases in one summary.

Is it worth asking for a culture?

Sometimes, and your vet is the right person to judge it. Cytology comes first because it is quick, cheap and immediately guides treatment. A culture with sensitivity testing is generally reserved for cases where cytology shows rod-shaped bacteria, where treatment has already failed, or where the infection is chronic — because rods such as Pseudomonas are frequently resistant and picking the wrong drug wastes weeks. Asking whether this case has reached that threshold is a reasonable question.

How do I know the infection has actually cleared?

By having it rechecked, not by looking at it. An ear that looks and smells better on the outside can still have organisms on cytology, and stopping there is one of the most common routes to a relapse a few weeks later. Book the recheck before you leave the first appointment, keep giving medication for the full prescribed course rather than until it looks fine, and treat the recheck cytology as the thing that defines the end of treatment.

When should we see a veterinary dermatologist?

It is reasonable to ask about referral once episodes are frequent, an ear never fully clears, cytology repeatedly shows rods, or the canal has started to narrow or thicken. Dermatologists have equipment and techniques a general practice may not — video-otoscopy and deep flushing under anaesthesia in particular — and they investigate the underlying allergic disease systematically. Asking the question early is not a criticism of your vet; most will raise it themselves at that point.