Assuming there is no personal contraindication (such as a previous adverse reaction to Benadryl) you probably could take it for allergies that involve your nose (allergic rhinitis). However, you would be well advised to take one of the more recent generation of antihistamines, most of which avoid the problem of drowsiness and a number of which are available over-the-counter. If you have any doubt about which to take, give your doctor or his nurse a call and ask which of these they would recommend.
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. MedHelp 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.