If i have conjunctivitis should i go to school? doctor says ok but principal no

Conjunctivitis: To prevent the spread of conjunctivitis, it is common practice to be treated with antibiotic eyedrops for 24 hours before returning to school or work.

Depends: Conjunctivitis is a generally used term for an inflamed eye or "pink eye"; it could derive from many situations - for example allergies or infection. Staying home from school is warranted for a contagious cause such as an infection.