@ducky@mstdn.ca @Meow@corneill.es The primary adverse event associated with topical neomycin is allergic contact dermatitis - patch test first. I'm 'allergic to everything' (corn allergy, MCAS) & have eczema and I don't react to it. https://pmc.ncbi.nlm.nih.gov/articles/PMC12134448/ "The pooled prevalence of CA [contact allergy] to neomycin was found to be 3.2% (95% confidence interval [CI]: 2.6%–3.8%) in adults and 4.3% (95% CI: 2.65%–6.3%) in children. The highest prevalences were observed in North America (adults: 6.4%; children: 8.1%) and South Asia (adults: 4.9%), while Europe showed lower rates (adults: 2.5%; children: 0.8%). Studies after the year 2000 indicated a prevalence of 2.1% in adults and 5.1% in children across geographical regions. "