The SelfMadeGlow Blog

Why Is My Skin Suddenly Breaking Out? 12 Hidden Causes (And How to Fix Each One)



If your skin has been perfectly fine for months (or even years) and suddenly, *boom* you wake up with breakouts… you’re not the first.
Sudden acne is one of the most searched skincare questions online, and the cause is almost never random.

Here are the 12 most common reasons your skin suddenly breaks out, plus what actually fixes each one.

Why Did I Start Breaking Out After Using a New Product?

Introducing any new product to your skin, even “clean” or high-end ones, can cause the following issues:

  • irritation
  • clogged pores
  • purging

Fix: Limit usage of the new product for 2 weeks. This time frame is enough to tell if its harming your skin rather than helping it, almost like a “golden timeframe”. If the acne disappears → that was the cause.

If your skin struggles with absorbing products quickly, or if your skin type is oily, try sticking to lightweight moisturizers and sunscreens during summer, and use heavier creams during winter.

What Happens If I Wash My Face Too Often (or Not Enough)?

“Why am I breaking out even though I wash my face?”

Over-washing = stripping oil → triggers more oil.
Under-washing = sweat + bacteria → clogs pores.

Fix: Cleanse twice a day, no more. Too much cleansing will strip your face of its natural oils, but not cleaning it enough will cause the bacteria, dust particles, sweat, and other potential breakout triggers that your skin collects throughout the day to clog your pores!

Why Do I Suddenly Have Hormonal Breakouts?

If you’ve rarely had hormonal breakouts before, a sudden new one can scare you. For starters, beginning or stopping birth control is a known major trigger.

Fix: Hormones stabilize in 6–12 weeks on average. In the meantime, focus on getting enough rest, eating clean, and taking care of your body while you wait. Soon enough, your skin will be back to normal. If the problem doesn’t go away, you might have to reconsider what’s causing your skin to breakout.

Even simple things like sleep 8+ hours a night can be difficult for us who like to keep busy. If you’re ever stuck feeling hopeless after barely sleeping, we’ve got you covered on sleep recovery tips.

Why Does Retinol or Vitamin C Make My Skin Break Out?

Retinol and vitamin C serums are both well-known “acne fighters” in the skincare world. Many praise retinol for the wonders its worked for their skin, while some have an overall negative experience. Vitamin C serums are usually considered to be less “risky”, since your skin doesn’t purge before it clears up like it does with retinol.

Using strong actives too fast → causes irritation → causes flare-ups as a result.

Fix: Use them every 2–3 days until your skin adjusts. Especially for retinol, don’t lose hope; when it comes to retinol, there’s a rainbow after the storm! And like with all skincare, consistency is key.

Can Dirty Pillowcases Cause Breakouts?

Short answer: Yes.

Longer answer: The bacteria, oils, and sweat from your face that build up on your pillow are a huge overlooked trigger for acne and breakouts. Additionally, cotton pillows can be rough on your skin and hair. Switch to a silk pillowcase for x10 better quality sleep.

Fix: Wash pillowcases 2-3 times per week.

Power naps are crucial for surviving the day after an all-nighter.

Why Am I Breaking Out Around My Hairline or Temples?

The root of this issue usually lies in your hair products. Hair oils, conditioners, gels, leave-ins… they all add up.

Fix: Wash and style hair before doing your skincare. When using a cleanser, make sure to use lukewarm water instead of hot or cold water, because it’s the most effective at removing oil, dirt, makeup, and of course: small particles of hair products.

Why Does Travelling Make My Skin Break Out?

Do you ever wonder, “Why does my skin get worse when I travel?” or “What causes travel acne?” Because you’re not alone! In fact, this is one of the most common issues when it comes to breakouts.

The culprits are:
✔ different water hardness
✔ humidity
✔ hotel detergents
✔ climate shock

Fix: Simplify skincare for one week while traveling. It will take your body some time to adjust to the new environment, and breakouts are often the result for those with sensitive skin. Some things that can help

Why Am I Breaking Out Before My Period (Even At New Times)?

Why do some of us break during that time of the month, but earlier than usual? Because hormones can shift month-to-month.

Fix: Spot treat with benzoyl peroxide 2.5% or salicylic acid.

Can Stress Really Cause Sudden Acne?

Yes — it’s true! When our cortisol levels are higher, our skin produces more oil and inflammation increases as a result.

Fix: Even 5 minutes of deep breathing reduces cortisol. Regulating cortisol levels isn’t always as easy as that, though — it often involves multiple factors like high daily workload, constant/chronic stress, etc. One of the best ways is take a step back and unwind for a day.

What Foods Cause Sudden Acne Breakouts?

Sudden spikes in:

  • dairy
  • sugar
  • whey protein

…cause breakouts in many people.

Fix: Try removing one category for 2–3 weeks and observe a difference. Changing what you eat daily doesn’t happen overnight. It’s a gradual process with results that pay off: clear, glowing skin.

Why Am I Breaking Out on My Cheeks or Chin From Touching My Face?

Touching your face definitely causes acne, and it’s one of the easiest things to do without being aware of it. This most often happens when we’re in a focused state and unaware of what we’re doing with our hands. Constant contact while studying, scrolling etc. spreads bacteria.

Fix: Keep hands off your face, and use tissues when leaning on your hand in public. Wash your hands thoroughly at home and remember to keep them clean after doing hands-on tasks like cooking or cleaning.

Bonus: What’s the Best Routine For Sudden Breakouts?

Morning
✔ Gentle cleanser
✔ Niacinamide
✔ Lightweight moisturizer
SPF 50

Night
✔ Gentle cleanser
✔ Salicylic acid (every 2 days)
✔ Moisturizer

Simple, gentle, and effective.


Why Does Sudden Acne Happen?

Because something changed, and your skin is reacting.
Identify the trigger, adjust your routine, and it usually clears fast.

Thanks for reading!