You can use iodophor to sterilize broken skin.
Povidone-iodine is a bactericidal disinfectant and is widely used in medical institutions. Povidone-iodine can be used to disinfect wounds, so you can use it if you have broken the skin. Povidone-iodine is less irritating to broken skin than alcohol, and it will not cause any significant stinging.
After using povidone-iodine to disinfect the wound, the cause of the skin breakage should be clarified. If the wound is scratched by wild animals, you should consult a doctor at the first time and get a rabies vaccination; if it is scraped by sharp objects, such as rusty nails, you should consult a doctor and get a tetanus antitoxin injection, and in addition, you should also keep the area of the skin breakage clean and dry, so as to avoid infections and aggravation of the condition.
Povidone-iodine is a topical medication, so if you buy povidone-iodine, you need to keep it out of reach of children to avoid irreversible damage caused by accidental ingestion. The medication is recommended to be used under the guidance of a doctor.