Dear N.K.Shah, The problem which you have described is a common disorder in contact lens
users but it is not to be taken lightly. First I would advise you to stop wearing your contact lenses immediately. Clean the lenses very thoroughly and change the lens cleaning solution every day. Get the contact lenses examined for any cracks/edge damage by a good optician or better still by an ophthalmologist. You may have to use anti allergic drops/antibiotic drops as advised by the ophthalmologist. additionallya lubricating eye drops may also be needed and finally consider going for a new contact lens after you have fully recovered.