Hi, it appears that she has severe allergic reaction,to one of the medicines , the neurologist has prescribed. First of all she should stop all the drugs prescribed by him and start one after another if she gets the reaction again she should stop the drug she has used last.
For the present reaction to my patient i prescribe antihistamin, mild steroid till she gets complete relief. Thank you.

Thank you for your query. It appears that your friend's daughter was given either ergotamine or sumatriptan for controlling headache, a standard procedure for treating acute severe migraine attack. However, it appears that she has developed a mild anaphylactic reaction to the same. Severe anaphylactic reactions may present as acute breathing difficulty, swelling of lips, face, itching, rash, tightness of chest, weakness/ tingling of limbs, reeling sensation, confusion, seizures etc.
It appears unlikely that your patient's reaction will progress much further at this point of time.
the management of this condition is mostly symptomatic, with antihistaminics (like benadryl, phenergan etc.) given for mild reactions with Adrenaline/ dobutamine etc. for severe life threatning reactions (also requires hospitalisation).
However, it is advisable not to take those medications which caused anaphylaxis again. If your patient would have come to me, I would have suggested some NSAIDS(non steroidal antiinflammatory drugs) like Naproxen, Paracetamol etc. for pain management. Though these are less potent and less effective compared to ergotamine / sumatriptan, given the anaphylaxis, there is not much of a choice.
hope I've been able to satisfy your query. Please don't hesitate to contact me for any further clarifications. Best of luck.