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Allergy and Benadryl

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Allergy Symptoms and Causes

An Allergy is a reaction by your immune system to something that does not bother most other people. People who have allergies often are sensitive to more than one thing. Substances that often cause reactions are

  • Pollen
  • Dust mites
  • Mold spores
  • Pet dander
  • Food
  • Insect stings
  • Medicines

Normally, your immune system fights germs. It is your body's defense system. In most allergic reactions, however, it is responding to a false alarm. Genes and the environment probably both play a role.

Allergies can cause a variety of symptoms such as a runny nose, sneezing, itching, rashes, swelling, or asthma. Allergies can range from minor to severe. Anaphylaxis is a severe reaction that can be life-threatening. Doctors use skin and blood tests to diagnose allergies. Treatments include medicines, Allergy shots, and avoiding the substances that cause the reactions.

Check out the latest treatments for allergy

allergy treatment research studies

Benadryl clinical trials, surveys and public health registries


Find Drug Side Effect reports



Benadryl Side Effects

Off Label Use (183)
Dyspnoea (162)
Nausea (142)
Hypersensitivity (139)
Urticaria (126)
Somnolence (119)
Vomiting (116)
Loss Of Consciousness (113)
Rash (110)
Pain (109)
Headache (108)
Pruritus (108)
Overdose (105)
Dizziness (102)
Product Quality Issue (102)
Insomnia (96)
Heart Rate Increased (86)
Hallucination (80)
Feeling Abnormal (79)
Condition Aggravated (78)
Infusion Related Reaction (46)
Anxiety (46)
Tremor (45)
Fatigue (45)
Diarrhoea (43)
Convulsion (42)
Malaise (38)
Pyrexia (38)
Erythema (38)
Blood Pressure Increased (37)
Swelling Face (37)
Asthenia (37)
Pharyngeal Oedema (35)
Throat Tightness (34)
Dehydration (32)
Chest Pain (31)
Swollen Tongue (30)
Cough (30)
Pain In Extremity (30)
Chest Discomfort (29)
Oedema Peripheral (29)
Hypoaesthesia (29)
Incorrect Dose Administered (28)
Abdominal Pain Upper (27)
Eye Swelling (27)
Flushing (26)
Fall (26)
Confusional State (25)
Chills (24)
Depression (24)

➢ More


Common Meds

Abilify (10132)
Adderall (1304)
Amlodipine (6664)
Amoxicillin (4387)
Benadryl (1568)
Celebrex (12876 )
Celexa (1342)
Cialis (2975)
Cipro (8580)
Citalopram (7792)
Crestor (18839)
Cymbalta (14373)
Doxycycline (1757)
Effexor (7289)
Flexeril (435)
Flomax (2177)
Fluoxetine (4261)
Gabapentin (4593)
Hydrocodone (2469)
Ibuprofen (8222)
Lantus (10968)
Lexapro (3499)
Lipitor (17769)
Lisinopril (8919)
Lyrica (27148)
Medrol (650)
Mirena (41254)
Mobic (957)
Morphine (5356)
Naproxen (538)
Neurontin (6501)
Oxycodone (4438)
Pradaxa (13372)
Prednisone (5926)
Prilosec (2631)
Prozac (1954)
Seroquel (27216)
Simvastatin (8348)
Synthroid (4452)
Tamiflu (5585)
Topamax (3748)
Tramadol (5054)
Trazodone (1458)
Viagra (5394)
Vicodin (1153)
Wellbutrin (6324)
Xanax (2847)
Zocor (5718)
Zoloft(6792)
Zyrtec(1669)

Recent Reviews

Alopecia areata........ anyone else?

Can I die from taking this many. Is it physicly addicting? Sorry about my spelling.

Convulsions and seizures sometimes for up to a week and a half at a time

Could I have had an allergic reaction to surgical gloves during a routine pap exam?

Does taking too much benadryl cause a person to fall asleep and not wake up?

Hi i like know about heavy dosage of benadryl side effects can anybody please give feedback waiting for positive response regards vijay

I have 2 question. First one is that my boyfriend has a pimple on his penis. To me it looks like a pimple on your face ingrowen type. He had this pimple maybe for a 3 weeks to a month Im not sure. Now he said he popped it. Could it be herpies. Hes th

I loved these strips. I have had allergic reactions to my own allergy shots. After waiting at the Dr.'s office for 15 minutes after my allergy shot, I leave to go shopping. Sometimes I can feel a little thickening in my throat, similar to when I'v

I take up to 50 Benadryl a day. How many should I take? I like how it makes me feel.

I was taking the loratadine 24 hr for about 4 months and past 3 months kept losing a lot of hair. Found bald spot few days ago and doc says alopecia areata. I saw a few postings on the internet of a correlation and wanted to know it anyone else has

<b>Describe Your Gastrografin Experience Here:</b>Itching, rash and diarrhea. Started as soon as test was finished. I ended up in the ER. I have an allergy to contrast dye. After reading about Gastrografin I see it contains Iodine.

About an hour after getting home from the hospital, I started with the sneezing fits. Lasted the rest of the day and all night an into the next morning. Felt like I had a very bad allergy attack or headcold.

After my 7th treatment of herceptin (first of herceptin alone - not with chemo) I had throat tightness, fluid in lungs, very irritated throat. Also nose bleeds, muscle and joint pain, mild swelling in hands and feet. Onc. suggested i take allergy pi

Allergy, rush

Before im taking dilantin but now im taking epanutin since this is the only available in my current location. im taking epanutin for 2 years already 400mg per day. 2 months before im experincing skin allergy/rashes at night. im taking medicine base o

Can it cure allergy on chicken foods??

Can you have allergy testing when on atenol

Dear, can i ask a question my son 19 month ago (1.6 year) has allergy, his IGE analysis was 50 when his old is 7 month. a doctor prescribes Finistil from about 10 month ago, and we till now give him about three teaspoon of finistil dialy from that da

Had my first Kenelog September 2010 apart from slight weight gain the only effects are that I feel great and no allergy symptoms ...it's a pain about the weight gain but such a relief to be able to breathe easily and taste food that it's a small pric

Hi, I get throat tightness and chest discomfort regularly....I began taking citrical/calcium around the same time I was diagnosed with a nickel allergy. A symptom of the allergy is mouth &amp; throat swelling and excess mucus. This leav

Allergy Clinical Trials and Studies

Treatments might be new drugs or new combinations of drugs, new surgical procedures or devices, or new ways to use existing treatments. The goal of clinical trials is to determine if a new test or treatment works and is safe. Clinical trials can also look at other aspects of care, such as improving the quality of life for people with chronic illnesses. People participate in clinical trials for a variety of reasons. Healthy volunteers say they participate to help others and to contribute to moving science forward. Participants with an illness or disease also participate to help others, but also to possibly receive the newest treatment and to have the additional care and attention from the clinical trial staff.