It’s so disheartening if, despite using your acne treatment consistently and with the patience of a monk, you still get nowhere. When this happens, and especially if it once responded well, most people fear that their acne has become treatment resistant. Whilst this makes sense and is an understandable label, it is not usually what’s happening. More often, the problem is that the treatment strategy has stopped matching what is driving the acne now. Identifying this is crucial to getting your acne under control. In this article, we’ll explore whether acne can become resistant to treatment. We’ll also review what to do if your acne is no longer responding to treatment.
Does Acne Actually Become Resistant to Treatment?
To answer this, it’s crucial to realise that acne is not a single process. It is a complex condition that is driven by several overlapping processes. This includes blocked follicles, inflammation, excess oil production, hormonal signalling and the skin barrier. Often one or two of these will be the main driver, but this varies from person to person. Even for one person, the main driver of their acne can change. This happens especially in response to illness, unsuitable skincare or stress. If the main driver changes, then the type of acne may also change.
When improvement stops or even regresses, it’s usually for one of two reasons. Either the dominant driver has changed, or you were not targeting the key drivers in the first place. When the main driver changes, there is often a period of good control or even full clearance for some time. This comes before plateauing or recurrence. If the issue was that the main driver wasn’t being properly targeted, then there is usually some improvement. However, there is never full clearance. At some point progress stalls or rolls back if something makes that driver worse. Acne can also become resistant if you have leaned on antibiotics for a long time. In this case, the bacteria that drive inflammatory acne can mutate and become resistant to the antibiotics. This can present either as no improvement at all, or as a period of improvement before rapid worsening.
Why Does the Dominant Driver Change?
Acne drivers change over time because acne involves multiple interacting pathways. Suppressing just one does not settle the whole condition. Most treatments act selectively, targeting a specific mechanism such as inflammation, bacterial activity, follicular turnover or sebum production. For example, retinoids help prevent microcomedones (the precursors to acne) by normalising follicular turnover. Benzoyl peroxide reduces inflammatory lesions and helps suppress bacterial overgrowth. Antibiotics reduce inflammatory signalling and bacterial load. Hormonal treatments reduce androgen-driven oil production. Each of these acne treatments can work, but none treats every driver by itself.
When the target driver is under control, it often stops being the factor holding back progress. This lets another driver become dominant. This is why progress can slow or plateau despite continued treatment. The best way to treat acne is as a dynamic condition. It is shaped by ongoing follicular changes, hormonal signalling, skin barrier function and lifestyle or environmental stress. As such, successful treatment should address more than one driver from the beginning. It should also adapt to how the acne behaves over time.
What Happens if Acne Becomes Antibiotic Resistant?
Antibiotic resistance in acne occurs when Cutibacterium acnes and the surrounding skin microbiome adapt to prolonged or repeated antibiotic exposure. A particular risk is using the same antibiotic again. This is especially a problem without other anti-inflammatories or acne modifying drugs like retinoids and oil regulators. The result is new strains of bacteria becoming dominant that resist the antibiotics. This reduces the treatment’s ability to kill bacteria and suppress inflammation. It is worth pointing out that this does not mean the bacteria have become more aggressive. Nor does it mean the acne itself is worse. Instead, it means the antibiotics have stopped working as an anti-inflammatory tool. As a result, inflammatory lesions become slower to respond or stop improving altogether despite continued antibiotic use. This can have a serious impact on tackling inflammatory acne, as it limits the number of treatments left.
How Can You Tell if Acne Has Become Treatment Resistant?
As we mentioned earlier, resistance is not a fixed label. It is a signal that the current treatment no longer matches the dominant driver of the acne. The best approach is to first avoid jumping to conclusions. Acne is a dynamic process, so avoid knee-jerk reactions. A good timeline is to monitor your skin for at least 8 to 12 weeks. Do this if you are worried that your treatment has stopped controlling your acne. Common signs that your acne has become treatment resistant include:
- You improved initially, then plateaued for several months with no further reduction in breakouts despite consistent use.
- Breakouts return or worsen while you are still using the treatment correctly and consistently.
- Restarting an antibiotic that worked before no longer has any effect.
- The type of breakouts changes, for example becoming more comedonal, inflammatory, cyclical or changing location.
- Increasing the dose or length produces little extra benefit.
What to Do if Your Acne Has Become Treatment Resistant?
If your acne has become treatment resistant, the main thing is to avoid the temptation to escalate quickly. The solution is rarely a simple case of stronger actives, higher doses, more products or repeated antibiotic courses. In fact, this approach usually makes things worse. What works is a thoughtful approach. With moderate to severe acne, always seek medical help, above all if you are using prescription acne treatments. A useful approach tends to involve:
- Do No Harm: Avoid the urge to keep switching or adding products, as changing too often makes it impossible to see what is really helping.
- Patience: Ensure you have given your current treatment enough time to work, and watch for any plateau or stalling over a long enough period to be sure it is really happening. In general you should give your skin at least 8 to 12 weeks before making any changes.
- Identify Shift: Look at how your acne has changed, not just how much there is. This will help you see whether the dominant driver has changed. If you are on antibiotics and the inflammatory acne has not changed but has simply got worse or stopped responding, then it may have become resistant to them. If the appearance, location or behaviour of the acne has changed, then a different driver may have become dominant.
- Adherence or Tolerance: Check that you have been using your treatment correctly and consistently. Also review how well you have tolerated it, as side effects like irritation, soreness, redness or peeling can lead to skipping applications without realising. These can mask progress or make the acne look worse.
- Support Your Skin: Disruption to the skin barrier can cause inflammation and skin microbiome imbalance. All of this can worsen acne, as well as reduce tolerance and how well treatments work.
The above approach usually helps you tackle why your acne appears to have become treatment resistant. Sometimes the driver has changed but the acne has simply plateaued rather than rebounded. In that case you usually need to add another agent to tackle it. If you are using antibiotics and your doctor suspects resistance, they may stop them. They might then change to another antibiotic, or swap to an antimicrobial and anti-inflammatory like benzoyl peroxide or hypochlorous acid.
How Do You Prevent Acne Becoming Treatment Resistant?
Take comfort in one thing. It is not really possible for acne to become resistant to all treatment. It’s just a matter of the main driver changing or, in the worst case, antibiotic resistance. Thankfully, you can lower the risk with some simple, common-sense steps:
- Consistency: Avoid skipping days, spacing applications too far apart or constantly switching treatments, as this hurts your results.
- Tolerance: Watch for early signs of irritation such as redness, tightness or stinging, and address these early.
- Skin Barrier: Protect your skin barrier with good cleansing, moisturising and sun protection. This prevents the irritation, inflammation, dryness and peeling that can limit success and mask progress.
- Multi-Focal Approach: Try to tackle acne from several angles by making sure your treatments include agents that keep pores clear, control oil and suppress inflammation.
- Stay Flexible: Adapt to how the acne responds and how your skin looks and feels overall.
- Exercise Caution with Antibiotics: Work with your doctor to avoid long-term or repeated courses of antibiotics. The aim is to use them for short courses when necessary, alongside other acne modifying treatments, rather than to rely on them.
- Vigilance: Pay attention to changes in the behaviour and appearance of your acne, as this may signal a new dominant driver.
- Seek Help: If acne persists or worsens despite good consistency, especially if you are using prescription treatments, involve your doctor early.
If your acne has become resistant to treatment, it’s important not to panic. Instead, take thoughtful stock of the situation. Seek professional help if your breakouts are severe, or you are using prescription treatments. Usually all that is needed is adding in something to tackle a driver that has become more dominant. In the case of antibiotic resistance, treatment may need to change completely. Ultimately, you can avoid treatment resistance. Tackle acne from several angles at the outset, avoid leaning on a single agent and adapt to your skin’s needs.
At City Skin Clinic, we believe that skincare is personal and should always centre around your needs. Our doctors offer custom topical skin treatments for acne using ingredients like tretinoin, azelaic acid, clindamycin and spironolactone where appropriate. If you are interested in a personalised skincare treatment please use our online skin consultation form or book a video consultation. Start your treatment journey today and take your first step towards great skin.
This article is intended for general informational purposes only and is not a substitute for medical advice, diagnosis or treatment. Always consult a qualified medical professional with any concerns about your skin or treatment options.
