A medical plaster can probably be found in any first aid kit.
It comes to the rescue when you need to protect your skin from various injuries – cuts, calluses, scratches, etc.
However, this product has one significant drawback: after the wound has healed, it is quite difficult to get rid of it.
Even if you manage to somehow remove the patch without causing further injury, there will likely be traces of the adhesive left on your skin.
Fortunately, all sorts of unpleasant sensations can be avoided if you have vegetable oil and a hair dryer at your disposal.
Take a cotton pad and dip it in vegetable oil, then wipe it over the sealed area of skin to remove the sticky bits.
You can consider that the job is done, because all that remains is to blow warm air onto the patch.
It will soften the adhesive applied to the patch, and after that you will be able to remove it easily.
