I Am Asking For My Friend Who Is Experiencing Tenderness

i am asking for my friend who is experiencing tenderness on the top of her head, near the crown. she says it feels like she got hit on the head but it is not a headache, it is only very sore and tender if she touches it. here the question is side effects because she's recuperating from this whipple surgery (not very well, mind you) and it taking regalon (sp), compazine (sp), and phenergan (sp). i'm wondering if this is some odd side effect, or if she should be more assertive about getting some kind of test done. (she's also on a TPN because she hasn't been able to eat since the surgery in december). any side effects that you know if that would create "skull cap tenderness"?