What's best for smallpox for a 4-month-old baby?

Lesions can be disinfected with, for example, Oktaseptal: https://www.gdziepolek.pl/produkty/97727/oktaseptal-aerozol/apteki At the initial stage of the disease, when the lesions are itchy and filled with fluid, a specialized foam to relieve itching can be used, e.g. Poxclin Coolmousse: https://www.gdziepolek.pl/produkty/63396/poxclin-coolmousse-pianka-dla-dzieci-z-ospa-wietrzna-pianka/apteki As scabs begin to form, to accelerate the healing of lesions and prevent their scarring, it is worth it lubricate the skin with gentle, moisturizing creams, e.g. Linoderm: https://www.gdziepolek.pl/produkty/43828/linoderm-plus-z-pantenolem-krem/apteki I enclose a helpful article: https://www.gdziepolek.pl/kategorie/leki-na-ospe-wietrzna-i-polpasiec