Hi Friend I am Dr Bilal and I am an Ophthalmologist
Welcome to Health Care Magic and thanks for writing to us .
I would like to answer your question and your satisfaction is my goal .
First of all, it is not recommended to use Pataday eye drops to treat
redness and irritation caused by
contact lens wear and do wear contact lenses if your eyes are red. Redness due to contact lens wear may not be caused by allergies. As you have also mentioned that there is a small
blister on iris ( I presume it be to
cornea i.e, the transparent part of eye ) , it may be due to a common side effect of Pataday eye drops which includes
blurred vision , itching , dryness , headache , feeling that something is in your eye . I would suggest you to stop using pataday eye drops as well as your contact lenses and visit your eye doctor as you may be prescribed with some alternative anti-allergic drops . Meanwhile you may use your glasses .
I hope you will find my answer helpful .
Wish you a speedy recovery .
Best Regards .