Effective Strategies for CPAP Side Effect Relief Near You
CPAP therapy can be an effective treatment for obstructive sleep apnea, but getting comfortable with the mask, airflow, and equipment may take time. If you wake up with a dry mouth, struggle with mask leaks, experience nasal congestion, or find it difficult to fall asleep with the machine, you are not alone.
The good news is that many common CPAP side effects can be improved with adjustments to the mask, humidification, or treatment setup. The right solution depends on what is causing the problem, so you don’t have to assume discomfort is something you must simply tolerate.
At the Center for Dental Sleep Health in Nashua, NH, we help patients understand their sleep apnea treatment options, including custom oral appliance therapy when appropriate. If CPAP remains difficult to tolerate despite working with your care team, we can discuss whether an oral appliance may be a suitable option for you. If CPAP is affecting your sleep, mood, or daily energy, call (603) 886-4300 to schedule a consultation at our Nashua dental office.


Why Can CPAP Cause Side Effects?
Continuous positive airway pressure (CPAP) uses pressurized air delivered through a mask to help keep your airway open while you sleep. Although this treatment works well for many people, the equipment and airflow can cause discomfort, particularly while you are getting used to therapy.
Side effects can relate to mask fit, air pressure, humidity, mouth breathing, sensitive skin, or difficulty adjusting to wearing equipment overnight. Some issues improve with simple changes, while others require guidance from your sleep clinician or equipment supplier.
The important thing is to identify the source of the problem instead of making changes that could interfere with your treatment.
Common CPAP Side Effects and What May Help
A mask that feels too tight, shifts during sleep, or allows air to escape can make CPAP difficult to use. You may notice pressure marks around your nose or cheeks, irritation where the cushion touches your skin, or air blowing toward your eyes.
What may help:
- Ask your equipment supplier to check the mask size and fit.
- Check that the cushion sits correctly and is not twisted or worn.
- Discuss whether a different mask style might fit your face and breathing needs better.
- Clean the mask according to the manufacturer’s instructions to remove oils that may affect the seal.
- Ask whether a compatible mask liner or replacement cushion could help with irritation or leaks.
Tightening the straps excessively can make pressure marks worse without necessarily fixing a leak. If your mask continues to leak or causes skin injury, ask your care team to reassess the fit rather than repeatedly tightening it.
Waking up with a dry mouth or irritated throat is a common CPAP complaint. It can occur when the air lacks sufficient moisture, when you breathe through your mouth during sleep, or when air escapes through the mouth while you use a nasal mask.
What may help:
- Ask whether your machine’s heated humidifier could help reduce dryness.
- Review the humidity settings with your CPAP provider if you experience dryness or excess condensation.
- Have your mask checked for leaks.
- If you use a nasal mask and frequently breathe through your mouth, ask your care team whether a different mask or another approach may help.
- Maintain regular hydration during the day and discuss persistent dry mouth with your healthcare professional.
A chin strap or full-face mask may be appropriate for some patients, but neither is the right solution for everyone. Ask your provider before adding equipment or changing your mask setup.
Some people experience a stuffy nose, nasal dryness, sneezing, or occasional nosebleeds while using CPAP. Airflow and insufficient humidity may contribute, while allergies or an existing nasal condition can make symptoms more noticeable.
What may help:
- Ask whether heated humidification or a change in humidity settings may improve comfort.
- Discuss saline nasal spray or another suitable approach if your nasal passages feel dry.
- Follow the manufacturer’s cleaning and filter-replacement instructions.
- Talk with your healthcare provider if allergies, chronic congestion, or another nasal problem may be contributing.
Do not assume persistent congestion is caused only by CPAP. Recurrent nosebleeds, significant nasal pain, or symptoms that continue despite adjustments deserve medical attention. Check with a clinician before using medicated nasal sprays regularly.
The mask cushion and straps can cause redness, itching, or irritation from pressure, friction, moisture, or sensitivity to the materials. Poor fit and infrequent cleaning may contribute.
What may help:
- Wash the mask and cushion as directed by the manufacturer.
- Check for damaged or worn components that may need replacing.
- Ask about compatible liners or alternative mask materials if irritation persists.
- Have the mask fit reviewed if it leaves painful marks or repeatedly rubs the same area.
Avoid applying creams or barrier products under the mask unless you have confirmed they are compatible with your equipment. Products that affect the seal can increase leaks. Seek medical advice if the skin breaks, becomes increasingly painful, or shows signs of infection.
Wearing a mask and feeling pressurized air for the first time can feel unfamiliar or restrictive. Some people become anxious when they put the mask on, while others find the equipment makes it harder to settle down at bedtime.
What may help:
- Practice wearing the mask while awake for short periods, following your care team’s advice.
- Try a calm bedtime routine and relaxation techniques that help you unwind.
- Ask whether a different mask style could feel less restrictive.
- Discuss pressure discomfort or difficulty breathing out with your CPAP clinician.
- Ask for additional support if anxiety continues to interfere with treatment.
You do not have to force yourself through persistent distress without help. Your provider may be able to identify adjustments or acclimation strategies that make therapy easier to manage.
Some CPAP users swallow air during treatment, a problem known as aerophagia. It can cause bloating, belching, abdominal discomfort, or symptoms that feel similar to indigestion. Some people also notice that reflux symptoms are more troublesome.
What may help:
- Tell your CPAP clinician when the symptoms occur and how severe they are.
- Ask whether your pressure settings, mask fit, or treatment setup need to be reviewed.
- Discuss whether your sleeping position or other health conditions could be contributing.
- Seek medical advice if symptoms persist rather than assuming they are an unavoidable part of CPAP use.
Do not change prescribed pressure settings yourself. Your clinician can determine whether adjustments are appropriate while maintaining effective treatment.
Air escaping near the eyes can cause dryness or irritation, while machine noise, airflow sounds, or tubing movement can disrupt sleep.
If air blows toward your eyes, ask your equipment supplier to check the mask seal and fit. For noise, check that the machine and tubing are positioned according to the manufacturer’s instructions, and ask your provider to assess unusual or persistent sounds.
Do not block air vents or modify the equipment in an attempt to make it quieter. If you develop ongoing eye pain, marked redness, or changes in vision, seek medical advice.
When Should You Contact Your CPAP Care Team?
Contact your sleep clinician or equipment supplier if side effects persist, interfere with sleep, or make it difficult to use CPAP as prescribed. They can help determine whether the problem relates to your mask, humidification, pressure comfort, equipment maintenance, or another medical concern.
It’s particularly important to seek advice if you experience:
- Repeated mask leaks or painful pressure marks.
- Persistent dry mouth, nasal congestion, or nosebleeds.
- Ongoing bloating or abdominal discomfort.
- Significant anxiety or difficulty using the machine.
- Continued daytime sleepiness despite using CPAP.
Seek prompt medical attention for severe or worsening symptoms, including significant breathing difficulty, chest pain, or severe abdominal pain. Eye pain or vision changes, substantial skin injury, or recurrent bleeding also warrant appropriate medical assessment.
Do not stop CPAP or change prescribed pressure settings on your own because of side effects. If you can’t tolerate the treatment, contact your care team to make a plan for addressing the problem and maintaining appropriate sleep apnea care.

What If CPAP Is Still Difficult to Tolerate?
Sometimes mask adjustments, humidification, and other troubleshooting steps are not enough. If CPAP continues to interfere with your sleep or you find that you cannot use it consistently, ask your treating clinician about other options rather than leaving sleep apnea untreated.
One option for eligible patients is custom oral appliance therapy. These devices are worn during sleep and are designed to help maintain an open airway, often by gently positioning the lower jaw forward.
A custom oral appliance may be an option for some adults with obstructive sleep apnea, including those who have difficulty tolerating CPAP. Whether it is appropriate depends on your diagnosis, sleep apnea severity, dental health, jaw comfort, and individual treatment needs. A sleep physician and qualified dental sleep medicine provider can help determine the right approach.
At the Center for Dental Sleep Health, Drs. Tara Levesque-Vogel and Keith Levesque can discuss whether an oral appliance evaluation may be appropriate for you. Our goal is to help you understand your options and work toward a treatment plan you can use consistently.
Read more about CPAP alternatives in Nashua, NH, or explore our sleep apnea treatment options.
Frequently Asked Questions
Should I stop using CPAP if I experience side effects?
Do not stop prescribed treatment without speaking with your treating clinician. Many side effects can be addressed, and your care team can help you find a safer, more comfortable plan if you are struggling to use CPAP.
Can my CPAP pressure be adjusted to make treatment more comfortable?
Your clinician may be able to adjust pressure settings or recommend a different approach, depending on the cause of your discomfort. Do not change prescribed settings yourself, because the treatment still needs to control your sleep apnea effectively.
Why do I wake up with a dry mouth when using CPAP?
Dry mouth can be related to mouth breathing, air escaping through the mouth, mask leaks, or insufficient humidification. A mask-fit review and discussion of humidity settings may help identify the cause.
What should I do if CPAP causes bloating or gas?
Contact your CPAP clinician to discuss the symptoms and whether your treatment setup needs to be reviewed. Persistent or severe abdominal discomfort should be assessed by a healthcare professional rather than managed solely by changing CPAP settings.
What options are available if I still cannot tolerate CPAP?
Depending on your diagnosis and individual needs, alternatives may include a custom oral appliance or other treatments recommended by your sleep clinician. A dental sleep medicine evaluation can help determine whether oral appliance therapy is suitable for you.
Get Help Exploring Your Sleep Apnea Treatment Options
CPAP side effects can be frustrating, but you don’t have to navigate them alone. If you’re struggling with your mask, dryness, congestion, or other discomfort, start by contacting your CPAP care team. If treatment remains difficult to tolerate, our team can discuss whether custom oral appliance therapy may be appropriate for your diagnosed sleep apnea.
Call our Nashua dental office at (603) 886-4300 to contact the Center for Dental Sleep Health. We welcome patients from Nashua, Hudson, Merrimack, and Milford, NH.

