Wounds and cuts heal faster if there is no pressure on them and if they are kept relatively motionless. Movement disrupts the formation of the new blood vessels. Bandages keep the wound clean, keep harmful bacteria out, and maintain moisture to prevent your skin from drying out. Bandages should be changed daily.
You must wait at least eight weeks (56 days) between donations of whole blood and 16 weeks (112 days) between Power Red donations. Platelet apheresis donors may give every 7 days up to 24 times per year. Regulations are different for those giving blood for themselves (autologous donors).
With many, you will not be deferred from donating. You can begin donating after six weeks. There is no waiting period to donate after receiving a flu shot. Healthy individuals can donate whole blood every 56 days, plasma every 28 days and platelets every 7 days. Donors who give a double red blood cell donation are eligible again after 112 days. Yes, if the piercing was obtained at a facility that is approved by OBI.