Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. I can understand the problems one undergoes with Sjogren s Syndrome. Since this is an autoimmune disease steroid is the mainstay of treatment and thus you need repeated courses. Injection of Cortisone injection into the gland is not known to me also , hence ask the Doctor very frankly about whether this has been a proved treatment in their center or is on clinical trial basis and if many patients have been treated and got well then you can certainly go for it if your consciousness allows. Otherwise you can continue with oral medications. Take a second opinion of a Specialist dealing with such syndromes. I hope CT scan and FNAC must have been, if not insist for these and further investigations to re-confirm the diagnosis to get a proper management. Hope I have answered your query. Let me know if I can assist you further.