 [ Symptoms ] i have got to pee very badly yet nothing at all comes out i think maybe my urethra is swollen on the inside male does anyone think asprin or benedryl might help reduce the swelling or perhaps a cold compress   i have gently pried open the opening and it does appear to be swollen shut in there not that i often look in there to know the difference  i just finished edging for 6 hours when this started maybe it is irritated and swollen inside nothing unusual in ejaculate other than a large quantity  this is by far not the first time i have edged for that long or longer [ Disease ] studies have shown that individuals who are prone to migraines can have their headaches brought on by histamine which is one of the compounds that mast cells produce in an allergic reaction the theory that food allergies can cause migraine headaches however is unproven there is also inadequate scientific evidence to support the claims that food allergies can cause or aggravate rheumatoid arthritis osteoarthritis tension fatigue syndrome cerebral allergy headaches and difficulty concentrating environmental toxic reactions or hyperactivity in children