hello doctor, my aunty is taking medicine for convulsions since 20 years or so, she had attacks only two or three times during this period, but was bought under control immediately, however, yesterday it seemed a little serious, it took almost 15 minutes for her to gain consciousness, why does convulsions occur after taking medicines too and also would like to know if placing iron keys or any iron item in hand is advisable, please advise. thank you.

Summarized question: What causes convulsions?