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Dr. John Norvell

Allergy and Immunology
Franklin, TN
22 years experience male

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Specialties
Doctors may have more than one area of specialty interest. Board certification in a specialty area means the doctor has completed formal training and has practice experience in that specialty, and has passed the certification examination from the corresponding accredited medical specialty board.

Allergy and Immunology

Languages spoken

English

Doctor Q&A

57 Answers
2 Agrees
The number of answers this doctor has agreed with.
A 38-year-old member asked:
Dr. John Norvell
22 years experience
No cure for foods: Unfortunately there is no solution for food allergies other than identification of the allergic food and avoidance of that food. Epinephrine can be u... Read More
A 41-year-old female asked:
Dr. John Norvell
22 years experience
Dark eyes: When you have allergies, the capillaries below your eye dilate. The pooling of blood in these areas give a dark hue to the skin below your eyes. It ... Read More
A 49-year-old member asked:
Dr. John Norvell
22 years experience
No: There are people that are prescribed zyrtec (cetirizine) up to four times a day for various conditions. It should be no problem to take zyrtec (cetir... Read More
A 45-year-old member asked:
Dr. John Norvell
22 years experience
yes: These medications are different and are not going to have drug interactions with one another.
A 30-year-old female asked:
Dr. John Norvell
22 years experience
Yes: Prednisone is effective but is a strong medication. It should be managed by your doctor's instruction. However, there is no harm if all three of the... Read More
A 34-year-old member asked:
Dr. John Norvell
22 years experience
Likely not: Many factors go into the development of asthma. Most people will not diagnose an infant with asthma in the first place. I would guess that you had b... Read More
A 29-year-old female asked:
Dr. John Norvell
22 years experience
You could get worse: Any type of inflammation can worsen asthma. So if you get sick with a cold and this adds to the inflammation in your lungs already present due to ast... Read More
A 34-year-old member asked:
Dr. John Norvell
22 years experience
Antihistamines: The easiest step to take at first that may provide some relief would be an over the counter antihistamine taken daily and up to twice daily if needed.... Read More
A 40-year-old female asked:
Dr. John Norvell
22 years experience
No: It sounds like you most likely have idiopathic urticaria which can be difficult to control in some cases. I would follow up with your allergist to se... Read More
A 32-year-old member asked:
Dr. John Norvell
22 years experience
Not soon: There are some groups conducting research on desensitizing to foods. However, this option will not be available soon. For now, the best option is food... Read More
A 39-year-old female asked:
Dr. John Norvell
22 years experience
Irritation: The diagnosis of vasomotor rhinitis is made when allergies have been ruled out. It is triggered by irritation of the nasal mucosa often by odors and ... Read More
A 24-year-old female asked:
Dr. John Norvell
22 years experience
No: You cannot be allergic to chlorine. It does not have a high enough molecular weight to be the cause of an allergic reaction. Chlorine is, however, a... Read More
A 38-year-old member asked:
Dr. John Norvell
22 years experience
No: Benadryl (diphenhydramine) is a short-acting antihistamine and is more likely to make you sleepy when used. Fexofenadine is a second-generation, non-... Read More
A 33-year-old member asked:
Dr. John Norvell
22 years experience
Depends on the cause: If your symptoms are from an infection, you may need an antibiotic. However, many of these are due to a virus and won't improve with antibiotics. If... Read More
A 48-year-old female asked:
Dr. John Norvell
22 years experience
Benadryl (diphenhydramine): For the control of itching, Benadryl (diphenhydramine) should be more effective but may make you more sleepy. If it is a severe case, and there is no... Read More
A 31-year-old member asked:
Dr. John Norvell
22 years experience
Not much: Many people are prescribed antihistamines at greater than standard doses to treat various conditions. Taking two of the standard 10mg tablets should ... Read More
A 54-year-old female asked:
Dr. John Norvell
22 years experience
Decreased absorption: If you take Allegra (fexofenadine) with juice, you can decrease the amount of the medication absorbed and therefore not receive the full effect you we... Read More
A 42-year-old member asked:
Dr. John Norvell
22 years experience
Keep area clean: The reaction is most likely an irritant reaction from the razor. Depending on the area of the bumps, i would just try keeping the area clean with soa... Read More
A 40-year-old female asked:
Dr. John Norvell
22 years experience
Yes: The guidelines that are published for evaluation and treatment of food allergies do not recommend testing without a prior reaction/symptoms after eati... Read More
A 46-year-old member asked:
Dr. John Norvell
22 years experience
No: This medication is not an antihistamine.
A member asked:
Dr. John Norvell
22 years experience
Yes: Vocal cord dysfunction is frequently misdiagnosed as asthma. People with vocal cord dysfunction frequently have trouble on inspiration, which is taki... Read More
A 38-year-old member asked:
Dr. John Norvell
22 years experience
Yes: The causative substance that results in contact dermatitis, which is the medical term for poison ivy, can be transferred on items such as clothes or s... Read More
A 35-year-old member asked:
Dr. John Norvell
22 years experience
Yes : You could be allergic to anything over time. If you have not had a reaction in the past to something, there is no need to avoid it.
A 46-year-old member asked:
Dr. John Norvell
22 years experience
No: Allergies occur when the body is exposed, usually, to proteins and they have to be of a certain molecular weight to trigger the production of allergic... Read More
A 47-year-old female asked:
Dr. John Norvell
22 years experience
There isn't one: The definitive treatment for nasal polyps is surgery. There are a number of natural remedies that have been postulated for asthma. However, if you ha... Read More
A 38-year-old member asked:
Dr. John Norvell
22 years experience
Nasal steroids: As long as you are talking about allergic rhinitis, nasal steroids have shown in studies to provide the greatest amount of relief. As far as cost-eff... Read More
A 31-year-old member asked:
Dr. John Norvell
22 years experience
Antihistamines: Most physicians will treat urticaria with antihistamines. Often this requires higher than standard doses. In severe cases of angioedema, physicians of... Read More
A 37-year-old member asked:
Dr. John Norvell
22 years experience
Most likely: If you are taking zyrtec (cetirizine) once a day and it does not make you significantly sleepy, you will be fine. A number of conditions are treated ... Read More
A 43-year-old member asked:
Dr. John Norvell
22 years experience
Contact dermatitis: Most likely substances in beauty products result in contact dermatitis. If you see an allergist, they can perform patch testing and let you know what... Read More
A 41-year-old member asked:
Dr. John Norvell
22 years experience
Probably: If you have safely eaten frog in the past then you can eat it, no matter what other things you are allergic to. If you have avoided it due to being a... Read More
A 37-year-old member asked:
Dr. John Norvell
22 years experience
antihistamines: This is a complicated question. The simple answer or first step would be to start with an over-the-counter antihistamine like zyrtec or claritin (lor... Read More
A 38-year-old member asked:
Dr. John Norvell
22 years experience
No: Poison ivy typically starts out as red patches and can even blister. However, scabies typically are single, small red bumps that follow a line. Scabe... Read More
A 32-year-old member asked:
Dr. John Norvell
22 years experience
Unfortunately no: Other than avoidance, the medications that you have taken provide the best and quickest form of relief. When possible try to cover up as much as poss... Read More
A 33-year-old member asked:
Dr. John Norvell
22 years experience
Unfortunately No: Asthma is a chronic inflammatory condition of the lungs. The good news is that in cases of mild asthma, it may be possible to identify triggers that ... Read More
A 39-year-old female asked:
Dr. John Norvell
22 years experience
No: 4 years from the expiration date is too long for the medication to be effective. Studies have shown that many medications can safely be used/taken a... Read More
A 39-year-old male asked:
Dr. John Norvell
22 years experience
Yes: Some people will find that nasal saline irrigation is more effective than prescription medication. Different delivery devices can be found at your lo... Read More
A female asked:
Dr. John Norvell
22 years experience
Best guess: The diagnosis of poison ivy is typically speculative based on the appearance of the rash as well as an exposure. If you were outdoors and within 2 da... Read More
A 37-year-old member asked:
Dr. John Norvell
22 years experience
Yes. : If you were to get a dose that was higher than the next shot in your protocol, it could trigger a local reaction in the skin or even stronger symptoms... Read More
A 41-year-old member asked:
Dr. John Norvell
22 years experience
No: Benadryl (diphenhydramine) is Diphenhydramine which is a first generation, sedating antihistamine. Unless you took a combination product which includ... Read More
A 31-year-old female asked:
Dr. John Norvell
22 years experience
Yes: If these are for asthma, the answer to your question is yes. Pulmicort is pregnancy category b which is good. Albuterol should only be used if neede... Read More
A 35-year-old female asked:
Dr. John Norvell
22 years experience
Yes, but complicated: In short, yes, food allergies can cause gastritis. Not commonly. The condition where gastritis would occur from food allergies is known as eosinophi... Read More
A 43-year-old member asked:
Dr. John Norvell
22 years experience
Yes: In some studies, the mist is more effective than the shot. However the mist is not recommended if you have asthma.
A female asked:
Dr. John Norvell
22 years experience
Upper arm: The injection is typically in the back of the upper arm. There are rare circumstances where it varies. However the arm is by far the most common loc... Read More
A 58-year-old female asked:
Dr. John Norvell
22 years experience
Consider allergy med: Entering the spring season, it sounds like the cardinal signs of allergies. When the pollen picks up it triggers histamine release in your eyes and n... Read More
A 19-year-old male asked:
Dr. John Norvell
22 years experience
Possibly: There is no absolute yes or no answer. Immunotherapy, which can either be with allergy shots or allergy drops addresses the fact that your body is ma... Read More
A 34-year-old member asked:
Dr. John Norvell
22 years experience
No: It used to be thought that the addition of medications such as ranitidine or Famotidine may be helpful since they do block one of the histamine recept... Read More
A 45-year-old member asked:
Dr. John Norvell
22 years experience
Yes: You can take them together. If you are sensitive to the sedating effects of antihistamines, you should not take them at the same time. It would be b... Read More
A 24-year-old female asked:
Dr. John Norvell
22 years experience
No: Pink eye is a viral infection and will not improve with benadryl (diphenhydramine). If you were suffering from itchy, red eyes due to allergies then B... Read More
A 24-year-old male asked:
Dr. John Norvell
22 years experience
Time to see the dr.: With nasal polyps and chronic sinusitis, you need a thorough allergy assessment and likely sinus surgery to remove the nasal polyps. I wish i had an ... Read More
A 19-year-old female asked:
Dr. John Norvell
22 years experience
Go to an allergist: An allergist can test you and find what you are specifically allergic to. Then you can receive treatment that my control your symptoms.

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Testimonials
Recommendations and Thank you notes are endorsements given from patients or other doctors.

3
Recommendations
114
Thank you notes
Great Doc !
HealthTap member
Mar 30, 2015
Dr. Norvell is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Mar 31, 2015
Dr. Norvell is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Thank you, your answer was very helpful! Thank you, I will try to convince my ENT that surgery is needed.
HealthTap member
Thank you, your answer was very helpful! I do not know that I feel funny my nose had cyst large inside.
HealthTap member
Thanks for your quick reply! Yes I know it helps.for awhile but weight gain and side effects bad th

Education & Training

Medical/Graduate school

University of Texas Medical School at Houston, TX
Graduated 2000MD

Residency

Type in hospital

Awards

Top Allergist and Immunologist , First Place, Tennessee - Summer
2013

Affiliations

East tennessee childrens hospital
Methodist hospital
Vanderbilt stallworth rehabilitation
90,000 U.S. doctors in 147 specialties are here to answer your questions, provide medical advice, write prescriptions, and more.
Answer emailed
in 24 hours or less