When finger swelling occurs after surgery, the first thing to check is whether the dressing was too tight when it was applied, resulting in impaired blood return, at which point the dressing can be loosened. Also elevate the affected limb to promote swelling reduction. If the swelling persists and is accompanied by redness and warmth of the surgical incision, you should be alert to the development of an incisional infection.
The diet should be light and nutritious, and can be high in protein to promote wound healing, with plenty of milk and eggs, and no spicy or irritating foods.