Hi, Thanks for using the HCM.
First of all i like to congratulate you for giving first aid
and taking him away from risks. Grand mal involves whole body.. Associated with aura before seizure
and then little depression
after seizure. Keeping him calm, relaxed, Loosening his tight dress, putting him in open clear space, Avoiding biting his tongue by keeping hankie/cloth between teeth, avoiding tongue fall, Assisting proper respiration are some of the first aid. Cold
water wont help him much.Turning bluish is due to vascular phenomenon due to reduced blood supply to body (periphery) during seizure. Usually he ll recover from it .
Hope I have answered your query. If you have any further questions I will be happy to help. Thanks get well soon....