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).
Donating blood is relatively simple and entirely safe, however, taking just an hour and requiring little preparation. There is little risk of adverse reaction when donating blood, and you can donate whole blood every 56 days; blood platelets every three days, up to 24 times a year. However, a few people may feel dizzy or faint during the process.