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Doctor insights on: Antibiotic Allergy

Immediately!: An allergy and a side effect are not the same. It may take several doses to cause nausea and vomiting. An allergic reaction such as face swelling and shortness of breath takes only one pill to cause your already primed immune system react violently. ...Read more

Immune activation: The body recognizes foreign substances as invaders at time and will immunologically react against them. Antibiotics, especially in certain categories, will unite with bodily chemicals and become more likely to generate an immune response. When this happens, an allergy sets up. This would only be annoying except the reaction can be extreme and even shut down the lungs. ...Read more

Exposure = Risk: Inappropriate/excessive use of antibiotics has multiple potentially negative effects one of which is the increased risk of sensitization, allergy to the medication. ...Read more

Antbiotic allergy: After cessation of the antibiotic the reaction usually subsides. Occasionally medication is required for a severe reaction. You may require a different antibiotic to treat the infection. ...Read more

Drug allergy: Most of the time there is no true allergy to a certain drug, rather an adverse drug reaction interpreted as an allergy, yet we cannot speculate. I'm not sure what kind of allergy testing you had that failed, and why do you want to go for an oral challenge if there is a safer antibiotic alternative that you aren't allergic to. If necessary, consult an allergist, check aaaai. Org for one in your area ...Read more

It varies.: It can occur within seconds of swallowing the first dose, to hours after the 'umpteenth' time someone takes it. ...Read more

Immediately!: An allergy and a side effect are not the same. It may take several doses to cause nausea and vomiting. An allergic reaction such as face swelling and shortness of breath takes only one pill to cause your already primed immune system react violently. ...Read more

Yes.: Yes, however it is somewhat limited. The only fda approved antibiotic that we can skin test for is penicillin. It is tested in small amounts by scratch testing and then small amounts are injected, in increasing doses. Finally if these are negative a small oral dose is given. It is important to test for possible pencillin allergy as this is still an effective, inexpensive antibiotic. ...Read more

Short term only: Short term desensitization to antibiotics is a common procedure, but the tolerance is short-lived. ...Read more

Delayed reaction: Some allergies may be of delayed onset. Also it's possible that another medication has combined with the first own to cause the symptoms. Last, sun exposure may cause skin changes while taking certain medications (photophobia). ...Read more

Yes: Drug allergies do not cause allergic reactions to vaccines. ...Read more

Ciprofloxacin: Ciprofloxacin and Macrobid are other good choices. It is best to have your physician decide since he knows your full history. ...Read more

Antibiotics prevent: Antibiotics are given to help prevent transmitting a possible infection to the baby. The risks and benefits of all drugs given to a women who is pregnant need to be determined and discussed with her. ...Read more

Tough situation: You did not say what antibiotics you are allergic to. However, I have not seen anyone that could not receive a substitute antibiotic that you are not allergic to. Check with your md about options and inform your dentist. ...Read more

Not unreasonable: The two forms of rash may look alike and be confused. ...Read more

Yes: One of the most common symptoms for patients allergic to drugs is vomiting in gastric distress. ...Read more

Uti: How do you know it's not a uti? Are you on antibiotics? Could be a muscle injury from the mva. The cold is probably not related. ...Read more

Reaction to food: You need to define your symptoms, a food reaction cannot last for a month. Please details your symptoms so we can provide adequate advice. ...Read more

Tricky question: Not as often as people think. Studies have shown that up to 80% of people reporting a medication allergy and not actually allergic to that medicine. Often with antibiotics the rash is actually due to the underlying infection being targeted with medication and not the medication itself. Talk to an allergist. ...Read more

Complex problem: Your problem is rather complex that needs a thorough evaluation and examination to see what it is. Based on limited data that you provide, chronic cough with colored mucus may be associated with either chronic bronchitis or chronic sinusitis. A normal pft is normal if it is read by an allergy/asthma or lung specialist. Only about 60% of chronic sinusitis associated with allergy. ...Read more

Need treatment: It seems to me you still have sinusitis with post nasal drip. You need antibiotics for longer duration. Along with oral steroids for a week. And nasal steroid. Wish you good luck. ...Read more

Yes: But the time it takes for remission to occur (if it goes away at all) depends on the medication. People with sulfa allergy almost never loses the allergy but those with penicillin allergy tend to lose it in 5-6 years. Do note that hydrochlorothiazide is not a common allergen and you should consider seeing an allergist to document this allergy. Benadryl (diphenhydramine) gel for pain? Does it work? ...Read more

Have you seen: ENT doctor? This sounds like a case for ENT. ...Read more

Anaphylaxis: Immediate type hypersensitivity, manifest by hives and shortness of breath can be life threatening. ...Read more

If a reaction: Anytime one has any untoward reactions to a medication they should let the prescribing physician know. ...Read more

Not really: Allergy symptoms will not improve with antibiotics. If a person has tonsillitis, it is helpful to have a throat culture to determine if a bacterial infection (like strep) is present, then antibiotics would be appropriate. While there is generally low risk with most antibiotics, inappropriate use can lead to resistant bacteria, side effects and even drug reactions. ...Read more

Possible: All medications have the potential for side effects. Some are common and expected, others are rare. Most are not serious, but some can be dangerous. The package insert provides useful data, which your doctor can explain. ...Read more

Not cancer: It won't stay still for 2 years without progressing, better get a thorough evaluation by an ENT doctor, good luck ...Read more