as there is slight swelling
only so there seems to be no reason to wory much. Just continue with application of pressure ice pack
over the swelling and also start with some analgesic-antiinflammatory syrup
like flexon etc.
There can be some discoloration at the site after 2-3 days but thats normal healing process... if the swelling continues after 3 days or if she complains of pain in the region than please visit your doc...