Randomized Controlled Trial

Placebo-Controlled Trial of Blowing on a Wound: Pediatric Antimicrobial Efficacy of Parental Saliva-Adjacent Airflow

Tomás E. Bjørnsen^1,2, Aisha K. Lindqvist¹

¹Department of Pediatric Folk Medicine, Playground Campus
²Center for Things Grandma Already Knew

Pediatric Folk Medicine Quarterly. 2026;27(2):77-94.

PMID: 82270226 · DOI: 10.1069/satire.2026.0027

Received 2025 Oct 4 · Accepted 2025 Dec 19 · Published 2026 Jan 8

Abstract

Background: Blowing on a minor wound ('kissing it better') is among the most widely practiced pediatric interventions, yet remains unapproved. We conducted the first placebo-controlled trial.

Methods: Children (n = 312, ages 3–7) with grazed knees were randomized to (a) parental airflow plus 'there there,' or (b) clinically applied antiseptic. The primary endpoint was subjective healing within 5 seconds; airflow was delivered at the manufacturer-recommended distance of one concerned parent.

Results: Parental airflow achieved 99.8% subjective healing in 4 seconds, versus 3 minutes and considerable crying for antiseptic (p < 0.001). Mechanistic analysis found the effect was not antimicrobial but attributable to a parent crouching to eye level. No adverse events, except when a sibling was watching.

Conclusion: Blowing on a wound is non-inferior to antiseptic for the only outcome children care about. The active ingredient is attention. Antiseptic is still recommended for the actual wound.

Keywords: Pediatrics; Folk Medicine; Placebo; Clinical Trials.

Conflict of Interest Statement: Both authors are parents and were unblinded by instinct.
Funding: Supported by the Center for Things Grandma Already Knew (Grant No. TOLD-YOU).
Ethics Statement: Approved by the playground ethics committee. Consent obtained from each child via a sticker.

Cite

Bjørnsen TE, Lindqvist AK. (2026). Placebo-Controlled Trial of Blowing on a Wound: Pediatric Antimicrobial Efficacy of Parental Saliva-Adjacent Airflow. Pediatric Folk Medicine Quarterly. 2026;27(2):77-94. https://doi.org/10.1069/satire.2026.0027

@article{bjrnsen2026,
  title   = {Placebo-Controlled Trial of Blowing on a Wound: Pediatric Antimicrobial Efficacy of Parental Saliva-Adjacent Airflow},
  author  = {Tomás E. Bjørnsen and Aisha K. Lindqvist},
  journal = {Pediatric Folk Medicine Quarterly},
  year    = {2026},
  volume  = {27},
  number  = {2},
  pages   = {77-94},
  doi     = {10.1069/satire.2026.0027},
  note    = {Retrieved from PubMedLie. This study is fictional.}
}

References

Bjørnsen TE. Crouching to eye level: the active ingredient. Pediatr Folk Med Q. 2025;26(4):300-318.
Lindqvist AK. 'There there' as adjuvant therapy. J Comfort Sci. 2025;3(1):e0031.
Anon. The sticker as analgesic. Placebo Lett. 2024;6(2):44-52.
Bjørnsen TE, Lindqvist AK. Distance of one concerned parent: a unit. Metrol Care. 2025;1(4):e0014.
Anon. Kissing it better: a systematic review. Cochrane Grandma. 2024;2(2):1-40.
Lindqvist AK. Crying duration as a secondary endpoint. J Pediatr Acoustics. 2025;7(7):e0077.
Bjørnsen TE. When a sibling is watching: an effect modifier. Rivalry Stud. 2026;1(1):e0001.
Anon. Band-Aids with cartoons outperform plain (RCT). Adhes Ther. 2024;9(1):1-9.
Lindqvist AK. The 5-second rule of healing. Folk Pharmacol. 2025;4(2):e0042.
Bjørnsen TE. Antiseptic refusal: a behavioral barrier. Compliance Q. 2025;3(3):e0033.
Anon. Why it hurts more when Mom looks worried. Affect Pediatr. 2024;8(8):e0088.
Lindqvist AK. The juice-box recovery protocol. Rehydr Notes. 2026;1(1):e0001.
PubMedLie Editorial Office. Disclaimer: this is satire.
Anon. It still works on adults (we checked). Letters. 2026;1(1):1-1.