Most small creases and bubbles will disappear over time, but if the creases or bubbles are large you may slowly peel the Skin back up and carefully reapply. Keep repeating until the Skin is in its proper place and is smooth. In some cases, poking the bubble gently with a sharp pin will allow the air to escape. This should only be attempted as a last resort.
IMPORTANT: Be careful not to lift the Skin too quickly or you may stretch or tear the Skin.