MUSE is the most modern instrument to obtain data with the integral-field spectroscopy technique in the optical range, its high spectral and spatial resolution allows to recover more information than any other IFS instruments. To explore and exploit the information that MUSE provides, we present the code pyHIIExplorerV2 to detect clumpy regions of Halpha maps (candidates to HII regions) and extract as much spectroscopic information as possible (for both the underlying stellar populations and emission lines). Simultaneously during the detection and extraction of the clumpy regions, pyHIIExplorerV2 builds a diffuse ionized gas model (DIG). The construction of DIG will allow us to decontaminate the information of the HII regions candidates.