Epidermal growth factor receptor inhibitors(EGFRIs) have been applied in several common malignancies including advanced non-small cell lung cancer. Paronychia is one of the most common cutaneous side effects, characterized by inflamed granulation tissue around the nails leading to pain and reduced quality of life. Despite available conventional therapies such as topical beta-blockers or chemical cauterization, some patients still do not respond well. Our previous pilot study suggested that adding Kinesiology tape wrapping to the conventional treatment may effectively improve pain and granulomas in patients with treatment-resistant EGFRI-related paronychia, with good safety. This study aims to evaluate the clinical efficacy and safety of using Kinesiology tape wrapping as an adjunct to conventional therapy for patients with EGFRI-related paronychia.

In this study, eligible patients with paronychia affecting their big toes will be included and randomized to receive a combination of Kinesiology tape wrapping and conventional treatment, or conventional treatment alone for 3 months. Patients are evaluated at baseline, at 1, 2, 4, 8, and 12 weeks after the initiation of the treatment. These evaluations will occur at the outpatient department or through phone contact and photos taken by patients if they cannot visit in person. Efficacy endpoints include pain numerical rating scale (NRS) and scoring system for paronychia related to oncologic treatments (SPOT). Besides, any side effects will be recorded at each visit.

Inclusion Criteria:

• EGFR inhibitors-induced paronychia
• Having at least one big toe involved with CTCAE(Common Terminology Criteria for Adverse Events) grade 2-3 paronychia

Exclusion Criteria:

• Younger than 20 years
• severe ingrown nails
• concomitant cutaneous infection
• severe nail destruction
• chronic paronychia with severe periungual fibrosis