In the state of ehram for Umra, if one has used a sanitizer, is it ok?

If we had used one which has scent and realised later, what has to be done?

1) If it has scent it may invalidate the rule of not applying scent during Ihram. You have to use one that does not have a scent.

2) The kafara for using scent on purpose is slaughtering a sheep. Based on obligatory precaution according to sayed Sistani