What to do if Skinoren does not work?

The white trace is normal and indicates the proper functioning of the gel. Perhaps the cause of skin changes in your case are, for example, hormonal disorders - then Skinoren itself may not be effective. Skinoren is an antibacterial preparation, the full effect of anti-acne effect can be obtained when the gel is combined (depending on the needs), m.in. with an oral antibiotic or benzoyl peroxide. Creams with benzoyl peroxide, which in combination with Skinoren, will have an even stronger antibacterial effect, can be bought in pharmacies without a prescription, also with home delivery, e.g. https://www.gdziepolek.pl/produkty/10223/benzacne-zel/apteki More information about acne treatment can be found here: https://www.gdziepolek.pl/kategorie/tradzik https://www.gdziepolek.pl/artykuly/jak-pozbyc-sie-tradziku-u-doroslych