Regarding Parabuthus venom, they are mainly neurotoxic, so a sting can be quite serious, and deaths have been reported. Symptoms from a sting may include; immediate, intense burning pain at sting site, and swelling may,or may not be present. Onset of neurological issues are usually first identified by ptosis (drooping eyelids), difficulty swallowing and breathing, slurred speech, disorientation and altered mental state. The muscles controlling movement may also be affected, and the sting victim may loose the ability to control these muscles, especially head and neck muscles. Complete, or partial paralysis may follow. The quicker these symptoms appear, the more severe the emergency.
Keep the patient assured and calm, and get to medical help, preferably a hospital, a.s.a.p. Notify the hospital of the nature of rhe emergency en-route, and ask that they have the following available;
*Respirator
*Cardiovascular monitoring system
*Enough antivenom, should this be needed.
Never leave a sting victim un attended, and make sure the airway stays open and unobstructed as excess saliva may be secreted due to envenomation! Brain damage due to lack of oxygen is a MAJOR concern in any serious neurotoxic envenomation, so constantly monitor breathing.
Please note that antivenom should ONLY be given in cases where it is absolutely necessary, and should ONLY be administered by qualified medical personnel. A specific antivenom is manufactured locally for Parabuthus transvaalicus, but I am not sure on what stocks are.
Should you be one of the lucky few who are allergic to Parabuthus venom, anaphylactic shock may bring to you, your end within a matter of minutes without much anyone can do.
So to sum it all up; DO NOT GET STUNG! I bet its not something you are likely to forget, and the consequences can be fatal. Play it safe, as I see there are way too many venom-cowboys out there!