Conjunctivitis

Conjunctivitis

If conjunctivitis is due to infection, you must wait for 14 days after the condition is fully healed and at least 7 days after you completed a course of antibiotics.

You can give blood if you have mild hay fever or another mild allergy to a food or environmental substance, as long as you are fit and well on the day, even if you are taking anti-histamines.