This review aims to shed light on the symptoms of obsessive–compulsive disorder (OCD) with a focus on contamination fears. In addition, we will briefly review the current therapies for OCD and detail what their limitations are. A key focus will be on discussing how smartphone solutions may provide approaches to novel treatments, especially when considering global mental health and the challenges imposed by rural environments and limited resources; as well as restrictions imposed by world-wide pandemics such as COVID-19. In brief, research that questions this review will seek to address include: (1) What are the symptoms of contamination-related OCD? (2) How effective are current OCD therapies and what are their limitations? (3) How can novel technologies help mitigate challenges imposed by global mental health and pandemics/COVID-19.

本综述旨在阐明强迫症 (OCD) 的症状，重点关注污染恐惧。此外，我们将简要回顾目前的强迫症疗法并详细说明其局限性。重点将讨论智能手机解决方案如何提供新颖的治疗方法，特别是在考虑全球心理健康以及农村环境和有限资源带来的挑战时；以及 COVID-19 等全球流行病所施加的限制。简而言之，对本次审查将寻求解决的问题的研究包括：（1）与污染相关的强迫症有哪些症状？ (2) 目前强迫症治疗的效果如何？其局限性是什么？ (3) 新技术如何帮助缓解全球心理健康和流行病/COVID-19 带来的挑战。