If you do not follow the home regimen, you are interrupting the treatment and will therefore not obtain the expected results. Not applying cosmelan 2 depigmenting cream with regulating action involves not regulating the melanocyte and, therefore, a persistent uncontrolled, excessive production of melanin. The spot will reappear as the skin layers are renewed, as melanin migrates to the surface making the spot increasingly evident.
Not using photoprotection, melan 130+ pigment control, involves a very high risk that the spot returns, as skin is more sensitive and receptive to external aggressions during the treatment.
Consult an aesthetic professional for more information