A 5-year-old residential school child walks into your clinic with the habit of thumb sucking in association with bruxism. Chemical approach for reminder therapy is:
Ferrous oxide
Femite
Nail polish
Nail polish with flavor
Femite solution is primarily used to prevent topical infection over the skin. The active constituent of the medication is known to be the most bitter substance available. Just a few parts of it per million will make the product so bitter that children and pets would not be able to swallow it. The femite is applied in the thumb/finger which used in thumb/finger sucking.