system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What is the difference between an ointment and a cream?
gpt
Ointment = 80% oil, 20% water

Cream = 50% oil, 50% water

Lotion = <50% oil, >50% water

That is the medical distinction. Over the counter products may be regulated as drugs and/or cosmetics, and may not be held to strict standards. 

Basically, feels oily, it is ointment, feels creamy, cream or lotion.