Nonpharmacological Approaches to Chronic Cough

Area of Science:

• Pulmonology and Speech-Language Pathology
• Investigates the neurophysiological and behavioral aspects of chronic cough.

Background:

• Chronic cough can persist despite medical treatment, often triggered by non-physical stimuli.
• Nonpharmacological interventions, particularly cough control therapy (CCT), are emerging as a valuable option.

Purpose of the Study:

• To review the efficacy and mechanisms of nonpharmacological interventions for chronic cough.
• To highlight the role of speech pathology in managing refractory or unexplained chronic cough.

Main Methods:

• Analysis of randomized controlled trials evaluating CCT.
• Examination of key therapeutic components: education, urge anticipation and control, laryngeal irritation reduction, and psychoeducational counseling.

Main Results:

• CCT has demonstrated efficacy in managing chronic cough, particularly in refractory cases.
• Mechanisms of action are multifactorial, involving peripheral, central, and higher cortical pathways.

Conclusions:

• Nonpharmacological CCT is supported by evidence and included in international guidelines for chronic cough management.
• Standardization of CCT service delivery remains a challenge, with variations across regions and countries.