Skip to content

Independent evidence reviews · Free · No referral fees

Cold therapyChronic pain

Cold therapy for chronic pain syndrome

Evidence review

Grade C· Emerging4 studiesLast reviewed November 8, 2026Also reviewed: sauna (grade C)

Overview

Studies of cold therapy in mixed chronic pain populations have used whole-body cryotherapy (WBC), a few minutes of cold air at about -157 F in a chamber, which is a different method from a home cold plunge. Uncontrolled series report pain relief lasting about 90 minutes after each session and improved mood and well-being after 10 sessions. In a controlled inpatient pilot, adding WBC to multimodal pain treatment did not produce more pain reduction than multimodal treatment alone. No cold-water immersion study in chronic pain was found.

Key findings

  • Controlled pilot, n=61: pain fell more than 1.39 NRS points in both the WBC and non-WBC groups; calprotectin fell with WBC (p=0.032) (Ritter 2025).
  • Uncontrolled, n=120 mixed rheumatic pain: pain fell after each WBC session, with relief lasting about 90 minutes; no further improvement in the second half of 4 weeks (Metzger 2000).
  • Uncontrolled, n=55 spinal or joint pain: quality of life (p=0.005) and well-being (p<0.001) improved after 10 sessions (Szczepańska-Gieracha 2014).
  • No cold-water immersion or cold plunge study in chronic pain identified.

Every study we reviewed

1 found no effect · 2 mixed results · 1 found benefit

Each study was checked on PubMed. The colored edge shows the direction of the result. The research library lists 26 studies on chronic pain and musculoskeletal conditions, across all heat and cold therapies, including case reports and older work not graded here.

[1]Controlled trial (not randomized)n = 61No effect

Analgesia by Cryotherapy in Patients with Chronic Pain with Analysis of Pain-Modulating and Pro-Inflammatory Parameters-A Clinical Controlled Pilot Study.

Ritter H et al. J Clin Med. 2025. PubMed 41226964 · DOI · Free full text

Who
Inpatients with chronic pain in a multimodal pain program (Germany)
What
WHOLE-BODY CRYOTHERAPY added to multimodal inpatient pain treatment (n=37) vs multimodal treatment without WBC (n=24)
Measured
Pain NRS; serum substance P, calprotectin, beta-NGF, CGRP
Result
Both groups had a mean pain reduction of more than 1.39 NRS points; calprotectin fell in the WBC subgroup (p=0.032); among patients without meaningful pain reduction, calprotectin fell more with WBC than without (p=0.042); no change in neuropeptides
Limitations
Pilot; not randomized; pain improved in both groups; WBC, not cold-water immersion
[2]Case series / reportn = 120Mixed

[Whole-body cryotherapy in rehabilitation of patients with rheumatoid diseases--pilot study].

Metzger D et al. Rehabilitation (Stuttg). 2000. PubMed 10832164 · DOI

Who
Consecutive rehabilitation inpatients: fibromyalgia 44%, rheumatoid arthritis 17%, chronic low back pain 16%, ankylosing spondylitis 11%, osteoarthritis 9% (Germany)
What
WHOLE-BODY CRYOTHERAPY closed chamber, mean 2.5 min, over a 4-week rehabilitation stay
Protocol
-157 °F · 2.5 min · 4 wk
Measured
Pain rating before and after sessions, tolerability
Result
Pain fell significantly after each session, with relief lasting about 90 minutes; baseline pain fell over the stay but not significantly from the middle to the end of the 4 weeks; well tolerated
Limitations
Uncontrolled; mixed diagnoses; short-lived per-session effect; German-language; WBC, not cold-water immersion
[3]Pilot / uncontrolled studyn = 55Benefit

Mental state and quality of life after 10 session whole-body cryotherapy.

Szczepańska-Gieracha J et al. Psychol Health Med. 2014. PubMed 23535078 · DOI

Who
Patients with spinal pain syndromes (34) or peripheral joint disease (21) (Poland)
What
WHOLE-BODY CRYOTHERAPY, 10 sessions
Measured
Quality of life (WHOQOL-Bref), psychological well-being (PGWBI)
Result
WHOQOL-Bref (p=0.005) and PGWBI (p<0.001) improved; effects largest in women, spinal pain patients and those with severe depressive symptoms
Limitations
Uncontrolled; mood and quality-of-life outcomes only; WBC, not cold-water immersion
[4]Pilot / uncontrolled studyn = 50Mixed

[The influence of cryochamber on parameters of blood pressure and pulse].

Szczepanowska-Wołowiec B et al. Przegl Lek. 2010. PubMed 20684337

Who
Rehabilitation inpatients with chronic pain from degenerative joint changes (Poland)
What
WHOLE-BODY CRYOTHERAPY chamber combined with exercise, 10 sessions
Measured
Heart rate and blood pressure
Result
Resting heart rate 66.5 to 63.1 bpm (p<0.001); abstract reports systolic pressure 118.7 to 119.9 mmHg while describing a significant reduction
Limitations
Uncontrolled; cardiovascular safety outcomes only; internally inconsistent blood-pressure reporting in abstract; Polish-language; WBC, not cold-water immersion

Protocols used in the studies

Whole-body cryotherapy chambers at about -157 F (-105 C), about 2.5 minutes per session, 10 sessions or daily use over a 4-week rehabilitation stay, combined with exercise or multimodal pain treatment.

What is still unknown

Randomized trials with pain as the primary outcome; which chronic pain diagnoses respond; whether brief post-session relief helps patients engage in exercise therapy; whether cold-water immersion has any effect.

Safety

Cautions for cold therapy in this condition

  • Whole-body cryotherapy was well tolerated in a 120-patient rehabilitation series (PMID 10832164).
  • Resting heart rate fell after a course of WBC with exercise; blood-pressure reporting in that abstract is internally inconsistent (PMID 20684337).
  • Whole-body cryotherapy contraindications and adverse events (16 documented across case reports and RCTs) are specific to cold-air chambers and do not transfer directly to cold-water immersion (Legrand 2023, PMID 37770960). See general cold safety entry.
General cold-water safety and contraindications

For clinicians

Suggested rationale

Whole-body cryotherapy gives short-lived pain relief after each session in mixed chronic pain (Metzger 2000), but it did not improve pain beyond multimodal treatment alone in a controlled pilot (Ritter 2025); evidence for cold-water immersion in chronic pain is lacking.

Suggested wording only. The treating clinician decides whether it reflects their clinical judgment for this patient.

Typical ICD-10 codes: G89.4, G89.29. Examples only; the clinician assigns the code.

What a letter of medical necessity should containWho can write it: physicians, NPs, PAs and others