Are there any activities I should avoid or take special care? You should not go swimming until the vaccination site has healed and you no longer need to wear a bandage on it. If you wear contact lenses, have removable dentures, have a colostomy or any other "open" area on your body that needs daily care, always wash your hands very well before handling your contact lenses, dentures, dressings, etc. Take care of all of these procedures before changing your vaccination dressing. 4.