“Didn’t you calm one down yesterday, only to find it brought a friend to work today?”

Getting an occasional pimple is common. However, if pimples repeatedly appear in the same area or refuse to go away, it may be time to review your lifestyle and skincare habits.

What people commonly call “pimples” may include several different skin problems, such as acne, folliculitis, or contact dermatitis. Acne, in particular, can develop when oil and dead skin cells clog the pores, and it can affect adults as well.

1. You Wash Your Face Too Often

If your skin feels oily, you may be tempted to wash your face several times a day. However, excessive cleansing can irritate the skin barrier.

Your face may feel clean, but your skin might be thinking, “Why are you doing this to me?” and become even more irritated. In general, use a gentle cleanser in the morning and evening, and avoid scrubbing aggressively. Overwashing can make skin irritation worse.

2. You Touch Your Face Frequently

Your hands come into contact with smartphones, keyboards, door handles, and many other surfaces. Frequently touching your chin or cheeks can irritate the skin.

Squeezing pimples can also worsen inflammation and increase the risk of dark spots or scars. That “just this once” squeeze can turn into a long-term skin problem.

3. Your Cosmetics or Hair Products May Not Suit Your Skin

A new sunscreen, foundation, cleansing oil, hair wax, or styling product may clog pores or irritate your skin.

If pimples repeatedly appear on your forehead or along your hairline, check whether shampoo, conditioner, or hair oil is being left on the skin. When choosing skincare or cosmetic products, look for labels such as “non-comedogenic” or “won’t clog pores.”

4. You Are Not Getting Enough Sleep, and Your Stress Levels Are High

When sleep is lacking and stress is overflowing, your skin may feel as though it is working overtime.

Stress is not the only cause of pimples, but it may worsen existing acne. If late-night eating and irregular sleep have become routine, try maintaining a consistent sleep schedule and reducing tension through light exercise or walking.

5. Sweat and Friction Keep Irritating Your Skin

Masks, hats, helmets, and tight clothing can repeatedly press and rub against the skin, trapping sweat and oil.

After exercising, avoid staying in sweaty clothes for too long and gently cleanse the skin. Acne can also appear on the neck, chest, and back. If it spreads across a large area or becomes severe, professional treatment may be necessary.

6. Your Diet Is Too Unbalanced

It is difficult to say that eating chocolate or greasy food once will immediately cause pimples.

However, if you often consume sugary drinks, snacks, and refined carbohydrates, it may help to track your eating habits and skin condition. Instead of eliminating a specific food immediately, keep a food and skin diary for two to four weeks to see whether there is a pattern.

7. It May Not Be an Ordinary Pimple

If large, painful lumps repeatedly develop in areas where the skin folds—such as the armpits, groin, or buttocks—and they release pus or an unpleasant-smelling discharge, they may not be ordinary acne.

These symptoms may need to be distinguished from skin conditions such as hidradenitis suppurativa. Do not squeeze or ignore them. It is best to consult a dermatologist.

Daily Habits That May Help Reduce Pimples

Wash your face about twice a day with a gentle cleanser, and avoid touching or squeezing pimples. Change pillowcases and towels regularly, and do not switch skincare products every few days.

Acne treatments can take several weeks to show results. Changing products too quickly may irritate the skin even more. In general, it may take at least four to eight weeks of consistent care to judge whether a treatment is helping.

When Should You See a Dermatologist?

Consider seeing a dermatologist if you develop large, hard pimples deep under the skin, severe pain, persistent dark marks or scars, or widespread breakouts on the chest and back.

You may also seek professional advice if over-the-counter products and lifestyle changes do not help, or if your skin condition is causing significant stress or lowering your confidence.

Pimples do not simply appear because your skin is dirty. Over-cleansing, touching your face, certain cosmetics, friction, lack of sleep, and several other factors may all play a role.

Instead of blaming the pimple in the mirror, start by checking the lifestyle habits your skin may be warning you about.

※ This article is intended for general health information only. If skin problems keep returning or are accompanied by pain, pus, or scarring, consult a dermatologist.