If someone is devotee or purely vegetarian, and that person is forced by doctor to eat non veg so that the disease or injury can cure. Is there any option that injury can cure and the religion policy not be disturbed?
From what I understand about Ayurveda, for medicinal purposes animal products can be used, especially if there is no alternative. They just should not be a part of regular diet. For reference, the following is a quote from this article. Note that I do not agree with the conclusion of the article, as it says a non-vegetarian diet is acceptable based on non-vegetarian items having been included in some Ayurvedic treatments. The important point is that they are only included in treatments.
Ayurveda is not totally vegetarian by any stretch of imagination. Mamsarasa – the meat soup is explained in all the classical texts as the best medicine for extreme emaciation. It reduces tiredness due to Pitta imbalance (for example working under Sun for long hours), ideal for those who do daily exercise, improves voice strength, skin quality, immunity etc. (Reference: Charaka samhita Sutra sthana 27/312-325).
Aswagandhadi leham, also known as Ajaswagandhadi lehyam conains meat as an ingredient, along with other herbs. [Some companies manufacture it without meat as an ingredient]
Varients of meat soup are explained as Vesavara in Bhavaprakasha, another classical Ayurvedic text.
Meat soup and other non veg diet has been prescribed along with certain medications. Eg: Meat soup is a co -drink for the medicine Punarnvadyarishta.
Taking care of health is quite important, as without that, in our current situation, it would be very difficult to pursue spirituality.