Standby Emergency Treatment
Most travellers will be able to obtain prompt medical attention when malaria is suspected. However, a minority at risk of infection may be unable to seek such care within 24 hours of the onset of symptoms, particularly if they are in an isolated location far from competent medical services.
In such cases, it is advised that prescribers issue antimalarial drugs to be carried by the travellers for self-administration ("stand-by emergency treatment").
If you are in a remote location but have access to e-mail consider consulting e-med who can advise on malarial treatment.
Stand by Treatment - Department of Health, South Africa