When something feels “off” with your therapy, your body might be trying to tell you something.

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Common but Concerning CPAP Side Effects

CPAP therapy is one of the most effective treatments for obstructive sleep apnea. But even when used correctly, some users experience side effects, especially in the early weeks. While some minor discomfort is common at first, certain issues are worth your attention and can signal a problem with your setup, fit, or settings.

Most CPAP side effects can be resolved with simple adjustments, new supplies, or expert help. Let’s walk through the symptoms you shouldn’t ignore, and how NuCara Home Medical can help you fix them.

Related: Is Your CPAP Setup Helping or Hurting Your Sleep?

Mask-Related Issues

Red Marks, Sores, or Irritation

Your CPAP mask should sit snugly on your face, not dig into it.

Red flags:

  • Skin breakdown or open sores
  • Painful pressure points
  • Ongoing redness or dents after you remove your mask

Why it happens:

  • Mask is too tight
  • Cushion is worn out
  • Incorrect size or style for your face

What to do:

Read More: Is It Time to Replace Your CPAP Mask? 5 Signs You Can't Ignore

Breathing & Airflow Concerns

Feeling Like Air Is Too Strong or Too Weak

If your pressure doesn’t feel “right,” you’ll feel it during the night and the next day.

Symptoms:

  • Gasping for air
  • Shortness of breath at bedtime
  • Waking up with a bloated stomach or dry throat

Fixes:

  • Use the ramp feature to ease into pressure
  • Make sure your machine isn’t malfunctioning
  • Don’t adjust settings on your own — NuCara’s team can help

Dryness, Congestion, and Sinus Problems

Your CPAP Shouldn’t Dry You Out

CPAP therapy shouldn’t leave your mouth like sandpaper or your nose congested.

Dry mouth, sore throat, or stuffy nose?

These are signs you may need to:

  • Increase humidifier settings
  • Switch to heated tubing
  • Add a chin strap if you breathe through your mouth
  • Use a saline spray before bedtime

Don’t forget to clean and replace your filters! Disposable ones should be swapped every 2 weeks, reusable every month.

Additional Resources:

When CPAP Causes More Fatigue, Not Less

Still Waking Up Tired?

This one’s big. If you’re using your CPAP every night but still feel exhausted, it could mean your therapy isn’t working effectively.

Possible causes:

  • Air leaks (reducing therapeutic pressure)
  • Mask dislodging during the night
  • Worn-out equipment
  • Incorrect pressure settings
  • Poor adherence (you’re removing the mask in your sleep)

What helps:

Keep Reading: 5 Reasons Why You Still Wake Up Tired with CPAP

Mental Health Effects and Claustrophobia

CPAP Shouldn’t Make You Anxious

Some users report panic, claustrophobia, or anxiety while wearing their mask, especially full-face ones.

You’re not alone. But you don’t have to just deal with it.

How to reduce anxiety:

What to Do if You’re Having Side Effects

Don’t quit therapy. Fix the problem.

Side effects don’t mean CPAP isn’t for you; they mean your current setup isn’t working for you. And that’s fixable.

Here’s what to try:

  • Replace worn-out supplies (most insurance plans cover regular replacements)
  • Adjust humidity or try heated tubing
  • Clean equipment thoroughly and regularly
  • Schedule a mask fitting with a NuCara specialist
  • Talk to your sleep provider if symptoms persist

Recommended Replacement Schedule

FAQs About CPAP Therapy Side Effects

What are the most common side effects of CPAP therapy?

Dry mouth, nasal congestion, skin irritation, and air leaks are the most frequently reported. Many are easily resolved with proper equipment and settings.

Is it normal to feel tired even when using my CPAP?

Not really. If you’re still tired after consistent use, your therapy might need adjustments. Reach out to a NuCara professional to review your setup or mask fit.

Can CPAP cause headaches or sinus infections?

It can if your mask is too tight, air is too dry, or your equipment isn’t clean. Humidification and regular maintenance are essential.

How often should I replace CPAP parts?

  • Cushions: 1 per month
  • Filters: 1 per month (disposable) or every 6 months (pollen filters)
  • Tubing: Every 3 months
  • Headgear: Every 6 months
  • Water chamber: Every 6 months

What should I do if CPAP makes me feel anxious or claustrophobic?

Switching to a smaller, less intrusive mask can help. So can using the ramp feature and practicing wearing the mask during the day. Don’t be afraid to ask for help.

Takeaway: Small Fixes, Big Improvements

CPAP therapy shouldn’t feel like a chore, or worse, like it’s making your nights harder. Most side effects are signs that your therapy setup needs fine-tuning, not that you’re doing something wrong.

NuCara Home Medical is here to support your entire journey, from equipment fittings to long-term therapy success. If your CPAP is uncomfortable, loud, leaky, or just not doing its job, our team is just a call or visit away.