Allergy to Local Anesthetics: Reactions to local anesthetics are relatively common, but rarely due to an allergic cause. Symptoms that occur after the use of local anesthetics can be caused by a variety of causes, including anxiety, hyperventilation, toxic effects of the drug itself, vasovagal reactions, and reactions to the epinephrine that is often added to local anesthetics to make them.
It is also possible for a person to have an allergic reaction to the preservatives added to local anesthetics. Methyl parabens are the most common preservatives added to reusable vials of local anesthetics. Methylparaben allergy, although still rare, is much more common than true allergy to local anesthetics.
Although true allergies to local anesthetics can occur, they are extremely rare, despite studies of large numbers of people experiencing reactions after using these medications. Skin testing revealed that almost all of these individuals showed no evidence of allergy to local anesthetics and were able to tolerate injections with these medications.
The possibility of latex allergy should always be considered when a person has a reaction to local anesthetics, given the common use of latex gloves in the medical and dental industry. Some medications used in spinal anesthesia contain sulfites, another preservative that can cause allergic reactions.
How is Allergy to Local Anesthetics Diagnosed?
Skin testing can be helpful in evaluating an adverse reaction to these medications. Allergists have a way of approaching a person who is having an adverse reaction to local anesthetics. However, most will perform skin testing with the goal of giving a person at least one local anesthetic that can be used in the future.
Most allergist skin tests are performed with local anesthetics that do not contain preservatives (do not contain methylparaben), do not contain epinephrine. If the skin test is negative, subcutaneous injections will be performed by the allergist using the local anesthesia in question.
How to Treat Allergy to Local Anesthetics?
Treatment of an acute reaction with local anesthesia is similar to a reaction from any other cause. If anaphylaxis occurs, treatment may include injectable epinephrine and antihistamines, as well as the use of intravenous fluids for low blood pressure and shock.
Preventing future reactions is another important aspect of treatment. Skin testing for local anesthetics should be under the supervision of an allergist. When a reasonable alternative local anesthesia is tolerated by the person, only this specific local anesthesia should be used in the future. It is still possible for the person to react to a different local anesthesia.
11d) SEVERE NAUSEA REFLEX: Although many people are anxious about sitting in the dentist’s chair, the thought of doing so can be even more frightening for patients with severe nausea reflexes. However, avoiding going to the dentist is not a solution; Delaying dental care due to fear of nausea can increase your risk of serious oral health concerns.
What Triggers the Severe Nausea Reflex?
First of all, understanding the causes of severe nausea reflex can help you take steps to reduce its effects. People disagree on whether the severe nausea reflex is produced by physical factors or psychological concerns, but it is possible that the severe nausea reflex may be caused by a combination of both.
In short, the severe nausea reflex, also known as the pharyngeal reflex, is one of the defense mechanisms that prevent foreign objects from entering your throat and blocking the airway, causing you to choke. However, the strength of this reflex varies from person to person. At the same time, psychological factors may contribute to making a person’s nausea reflex more severe, worsening an already existing severe nausea problem.
What Can You Do to Reduce the Severe Nausea Reflex?
In addition to understanding whether your severe nausea reflex is triggered by physiological factors or psychological factors, you can take these steps:
Concentrate on breathing through your nose
Breathing through your mouth is one of the most common severe nausea reflex triggers. Focus your attention on breathing deeply through your nose instead.
Find a distraction !!!
Changing your focus can often reduce the chance of a severe nausea reflex. Squeezing a stress ball, listening to music through headphones, or using self-hypnosis techniques helps maintain ongoing dental treatment.