Shunt malfunction is a partial or complete blockage of the shunt that causes it to function intermittently or not at all. When a blockage occurs, CSF accumulates and can result in symptoms of untreated hydrocephalus. A shunt blockage from blood cells, tissue or bacteria can occur in any part of the shunt.
Updated March 20, 2017. Allergy shots, or immunotherapy, are a series of injections that are given over many months to years and are not given as a single shot. What many refer to as a 3-month allergy shot,â on the other hand, represents a long-acting corticosteroid injection, such as triamcinolone (Kenalog). Many people swear by these long-acting steroid shots as a great way to get through their allergy season symptom-free.
After age 12, a tetanus booster shot usually is recommended every 10 years. Under special circumstances, however, a doctor may give the booster dose sooner. For example, a tetanus booster is usually given if you get a severe cut or puncture wound and it has been more than 5 years since your last tetanus shot.