A 30 mm mantous is of high significance. I think u need to consult a physician specialising in infectious diseases to find out the cause of the same.
There are three things that can cause significant redness in this situation.
1. Something called phylectenular conjunctitis - this is a kind of allergic response
of the body to the TB infection and needs steroids
in the conjunctiva
- comparatively rare entity
3. allergic conjunctivitis
not related to the tb process itself.
along with the first two entities, a course of anti tb therapy tailored to the source is necessary.
hope this helps