Generally, when the conventional system of medicine fails every eyeball turns to Ayurveda. But it is not like that "everything is curable in Ayurveda". Ayurveda is the only science, where diseases are classified as Sadhya (curable), Asadhya (Incurable), and Pratyekhyey (Just Manageable). When you visit a knowledgeable Vaidya he can guide you about the category of the disease you are in. Everything is curable through Ayurveda, only quacks say so, not the educated Vaidyas.