The consequences to the child are not related to the physical violence of the fit. While violent fits may cause physical damage, most fits are not thought to further harm the brain. However, some of the minor manifestations, particularly minor tremors in babies a few months old may be an indicator of infantile spasms, a serious condition, which can cause serious damage to the brain, and needs to be treated as soon as possible. It is important to consult a doctor if you notice anything that might be a fit. It is better to be safe than sorry.
Most fits stop naturally after a minute or so, without any special medical treatment.
Status epilepticus is serious condition and must be treated as a medical emergency. An ambulance should be called and the child taken to hospital immediately. Phenobarbital is sometimes added intravenously. If your child is prone to status epilepticus, your doctor may teach you to administer diazepam or lorazepam suppositories at home. If your child has suffered epileptic fits, it is important to have a plan to cope with status epilepticus.