Doctor insights on:
When Does Allergy To Penicillin To Appear
72-96 hours: The usual time period is 72-96 hours after exposure although more vigorous reactions can happen sooner. ...Read more
Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more
How long does it take for food allergies to develop? If you have delayed allergic reactions, is it possible to eventually become anaphylactic?
Food allergy: A person, due to the right timing of exposure in the predisposed, can develop food allergies at any time in her/his life to any food. However most food allergies are due to the common highly allergenic foods, such as nuts seafood milk eggs soy ; wheat. It is unknown if delayed reactions can become anaphylactic; however if there is evidence of an ige reaction to a food, caution is the best remedy. ...Read more
Can vary: Allergic reactions from taking antibiotics can be an immediate event or can take days to develop. When they take a longer period of time, we call them "delayed hypersensitivity reactions". If there is a concern about an allergy to a medication, it is best to speak with the prescribing physician about what to do next. All the best! ...Read more
Various ways: The most common symptoms of food allergy including those to shrimp are hives/swelling [lip, tongue], and gastrointestinal symptoms (vomiting/abdominal pain/diarrhea). If more than one system is involved (gi, lungs, skin, etc) it is called anaphylaxis. Shrimp allergy can be long term and serious. It typically presents in adults compared to children. ...Read more
Can u suddenly develop an allergy to dogs. If so would a different breed still cause allergy and does it ever spontaneously disappear. ?
Yes: Yes, it is possible to develop allergy to your pets including dogs. We are allergic to its proteins found in the saliva, skin flakes, dander, urine and sweat glands. Hairy or less hairy dogs both carry those proteins so you would be allergic to all breeds. Despite popular opinion, there are no true hypoallergenic dogs. It does not spontaneously disappear. Allergy shot could help you tolerate it. ...Read more
< 7 - 10 days: Antibiotics like penicillin can cause different types of rashes that can vary in how long they persist. The classical true penicillin allergic rash is hives and once the penicillin is stopped usually resolves in less than 7-10 days. Occasionally this can trigger more prolonged hives. Other rashes from penicillin not due to true allergy would include small red bumps that usually lasts < 1-2 wks. ...Read moreSee 1 more doctor answer
A day to weeks: There are 2 types of "allergic" reactions, meaning an immune response, that we typically see with penicillin. However there are numerous non allergic or adverse reactions that can occur. For your question, the 2 allergic reactions are Type I and Type III. Type I can be immediately following one dose of Pen or after days. TypeIII can occur a few weeks after stopping! Can only test for Type I. ...Read moreSee 1 more doctor answer
Hours to days: If the rash you have is from a recent and brief exposure, if you have some topical benedryl cream, it should resolve relatively quickly. If you have had prolonged exposure, you might need to add a topical steroid for relief. This might take a couple of days. Finally, if the rash is infected, see your doctor as that might not heal on its own. ...Read more
How often does allergy immunotherapy fail? (in terms of not being able to build immunity to allergen?)
If someone has an allergy to wheat/gluten/grains, what occurs when they eat any of them together?
Small Bowel Inflamed: If diagnosed with celiac diease, please read labels carefully and avoid all foods with wheat, barley, rye (includes breads). Explore the gluten-free aisles of your supermarket. Enjoy products made with rice, soy, oats and liberalize fresh fruits and vegetables, as well as lean meats. Consider blood testing for tissue transglutaminase antibody to assess whether your diet is truly free of gluten. ...Read more
Virus induced hives?: Good morning, hives result from release of histamine and other mediators (compounds) due to immune system being challenged such as an allergic reaction. Many viral infections are associated with hives. Hiv is a virus. In addition, HIV is known to affect immune regulation. The duration of hives after a viral infection can last from months to years. ...Read more
Not rare: An allergic respose takes place when your immune system recognizes a foreign substance. Highly allergic people's immune system does this quickly. Another person may need to be exposed to the substance (food) hundreds of times before it reacts to it. Once it recognizes it as foreign it will repond instantanously every time it sees it. A never allergic respose turns into an always response. ...Read more
Dust mite contact: Dust mites live in bedding, carpeting & upholstered furniture but not in vinyl-covered crib mattresses. Enzymes in their fecal pellets trigger an immune response when they contact the skin or when they are inhaled into the lungs. These same enzymes may digest the seal between skin & airway cells permitting them to penetrate deeply where processing by the immune system elicits an allergic reaction. ...Read moreSee 1 more doctor answer
If allergy tests show i'm not allergic to penicillin how likely is it that I am in fact allergic?
Penicillin: Very very unlikely. I have several patients that wondered about same, & they all are doing just fine. ...Read more
How long does clindamycin given during surgery stay in the system I had a reaction to it blistered rash and want to know how to minimize the reaction benedryl does not help ?
Only hours: Clindamycin is only around for a few hours. It should be completely gone by 24 to 36 hours. Reactions are commonly caused by histamine. Any antihistamine such as tagamet or Zantac (ranitidine) may provide some relief as well. You should make sure your doctor knows about your issues in case you need something stronger like steroids. ...Read moreSee 1 more doctor answer
- Talk to a doctor live online for free
- How long does it take for an allergy to penicillin to appear?
- When does symptoms of hiv appear
- When does cleft lip appear
- Ask a doctor a question free online
- Penicillin allergy
- How long does it take a rash due to a penicillin allergy to clear?
- What does it mean when brown spots appear on my body?
- What does herpes look like when it first appears?
- Talk to a infectious disease specialist online