This study showed that the AUC for NLR (cut-off = 8.25) was greater than those for MIP-1β, TNF-α, IL-17A, and IL-3 when distinguishing GN-BSI and GP-BSI; however, the AUC for NLR (cut-off = 5.46) was less than IL-3, MIP-1β, TNF-α, and IFN-γ, respectively, when distinguishing fungi-BSI and GP-BSI. Here, IL3 is linked to bathing suit ichthyosis.