Mom is a heathy energetic 70yr old caucasian,who tonight suddenly suffered from an itching sensation around the bottom crown of her hair line after taking an Advil[which she does e,in back of neck..thus her head throbbing,pounding,but not to the point of great alarm,however after taking an Advil[often when inbetween chiropracter] she never gets any reaction..this started at /between 12:30am-2:30am now subsiding,,she said once her sister rubbed the back of her head,&she couldn't take it,also she said,her right ear,side was a tad sensitive[used ear drops nlast week,then went away[a wax thing I think..but mainly these pains in the back of her head,throbbing,w/lip,just a bit feeling nubness,but not so numb...#0 yrs ago she alergic to shrimp..we no longer have that here,but she did have oyster,not fresh but they were made w/ mixture light spinach,she's a good cook..so it couldn't be that,we often eat canned oysters..was it the Advil,even though she's never had an reaction before?Should this itchy scalp thing go away,w/ ice?She feels itch by /around her scalp but said when she scratched it it was worse! Code: