HI Crost 20 Tablet is a corticosteroids medication used to treat skin disorders and allergic conditions by inhibiting inflammation-causing chemical messengers. It is best taken with food to avoid stomach upset. While generally safe, it may cause side effects like dizziness, headaches, and swollen ankles. It can also make it harder to fight off infections. Pregnant and breastfeeding mothers should consult their doctors before taking this medication.