One good option to treat SFN is IVIG (intravenous immunoglobulin).
Indlela encedayo yokunyanga ingxaki yemithambo-luvo esezandleni nasezinyaweni liyeza elifakwa emithanjeni iIVIG (ukufaka emithanjeni isilwi-buhlungu egazini i-immunoglobulin).