I don't know where you live but pilocarpine for narrow angles is antiquated therapy that I haven't used in 20+ years. If you have narrow angles you need a laser irodotomy (hole in the iris), it will open the angles and prevent angle closure. Prolonged use of pilocarpine makes the pupil still and frozen small preventing a satisfactory view of the retina.
I cannot tell you why your eye is red. Angle closure is a cause of red eye but usually blurred vision, severe pain, nausea and vomiting. I would get to the closest MODERN ophthalmology clinic you can.
This site complies with the HONcode standard for trustworthy health information.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.