1 But in some cases they are left in place for up to 6 weeks.  Walking casts, splints, special shoes, or wooden shoes are sometimes used. Regular shoes can sometimes be worn in about 4 to 5 weeks, but some procedures require wearing special shoes for about 8 weeks after surgery.
No. Brain freeze is a headache most commonly associated with the quick consumption of cold substances, such as ice cream. When the cold substance comes into contact with you â¦ r palate or the roof of your mouth and sinus cavities it causes the blood vessels to vasoconstrict or get smaller.
This simple fact can be applied to the biological cause of brain freeze as well. Upon contact with ice, the blood vessels in the roof of the mouth begin to constrict, making the vessels in the head to expand, and thus creating a headache. 2) Trigeminal nerve factor: The trigeminal nerve, or cranial nerve 5 (CN5), is responsible for facial sensation.