As from your history you are using contact lenses for quiet a long time. Your symptoms indicate allergic conjunctivitis
, caused by allergy
to contact lenses. You are not required to stop the use of contact lenses completely. But you are required to reduce the frequency of using contact lenses and you require antiallergic eye drops for treatment of the allergic conjunctivitis. I advice you to consult a ophthalmologist
for treatment and further advice.