Why does it burn the anus after applying Procto-Zac?

The symptom may be associated with intolerance to any of the components of the preparation. Procto-Zac is supposed to relieve symptoms such as itching or burning around the anus. If in your case it causes burning, you should abandon its use. Perhaps it is worth using other preparations with a similar effect, they are available in pharmacies without a prescription. Here you can compare the prices of sample preparations and make an order with home delivery or collection at the pharmacy: https://www.gdziepolek.pl/produkty/64145/procto-glyvenol-krem/apteki https://www.gdziepolek.pl/produkty/64147/procto-hemolan-krem/apteki If the cause is a fungal infection of the area, you can also use a cream with clotrimazole, e.g. https://www.gdziepolek.pl/produkty/18711/clotrimazolum-gsk-krem/apteki https://www.gdziepolek.pl/produkty/18713/clotrimazolum-hasco-krem/apteki I enclose a link to a helpful entry: https://www.gdziepolek.pl/opinie-i-pytania/97970/dzien-dobry-od-okolo-3-tygodni-cierpie-na-nawracajacy-swiad-okol