Hi, welcome to our site. I am Dr Saumya Mittal. Read your query. That is a very significant question and i appreciate your problem. I will try my best to answer your query I think it would have been better if you had mentioned the medicines she is already on and the doses. sometimes, all it needs is increasing the doses of the medicines. Drup resistant myasthenia is not a very nice thing to have. assuming she is on most of the medicines, including steroids, you could plan for surgical option, namely thymectomy. and finally, if that does not help, you could think of IvIg or plasmapharesis. I am sorry, but to my knowledge, no herb will help victoria I hope this helps you. Inform the reports mentioned above so i can be of help further. Best of luck. I have given you the answer to the maximum considering the information provided. The results of the tests could further enhance my answer to you. Please do understand that some details could be extracted from a detailed history and examination. Looking forward to your return query with the details asked so that I can help you further. (If the answer has helped you, please indicate this)