Give two examples in which people tried to prevent disease in the Middle Ages c.1250-c.1500

Two examples in which proper tried to prevent disease in the Middle Ages c.1250-c.1500 includes: 1. Purifying the air by carrying a bunch of sweet herbs such as lavender to wear off miasma 2. People confessed as they tried to I’ve a sin free life so they couldn’t revive disease from God