KEEP IT CLEAN AND DRY
Always wash your hands with soap and water before touching your piercing to avoid contact with bacteria or dirt.
Use a saline soution (a mixture of non-iodized sea salt and distilled water) to clean the piercing twice a day. Soak a cotton ball or a cotton swab in the saline solution and gently clean around the piercing area. You may also a piercing aftercare spray. If using an aftercare spray, do a patch test beforehand to check for possible allergic reactiions.
Downsizing is done before a piercing is fully healed by swapping a longer post out for a shorter one to minimize the potential for snags and trauma.