Doctor insights on:
Allergic Reaction To Antibiotics
Depends: It depends on the nature of the immune response. Allergic antibody (IgE) mediated reactions occur rapidly after ingestion and can involve hives, skin swelling, wheezing, shortness of breath, nausea/vomitting, diarrhea, dizziness, confusion, palpitations, loss of consciousness and even death. A delayed reaction can occur after days on the medicine and would have different constellation of symptom
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
Antihistamine: A short course of antihistamines like Benadryl (diphenhydramine) will help. It is advisable to have your doctor classify the allergic reaction and document in your medical record the type of antibiotic which caused the reaction. Please, always follow directions listed on over the counter meds and better yet double check with a pharmacist.
Depends: On the reaction, which can range from some rash to full anaphylactic shock to other complications, first step is to stop the medicine, at times it might take weeks for the rash to go away with certain antibiotics, just keep away from direct sunlight as much as you can while you have the rash, follow up with your pcp/allergist, goodluck
Clear?: Yes, usually rash clears in a few days.
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!
Does pin and needle sensations (tingling) go away? It's all over my body. It started after a allergic reaction to antibiotic
A couple of wks: If this is truly from a drug reaction, I would expect the symptoms to go away in less than 2 weeks after the drug has been discontinued.
I took benadryl (diphenhydramine) at 745 for an allergic reaction to antibiotics. When will it kick in?
Dose and frequency: Dependent! So you may have taken it too long ago or not enough. If you're still itching with rash you should see your PCP to make sure that it's not anything more serious that you may need something stronger. So call your doctor and be seen in person for the best care. Always good to get a professional opinion.
I've got a rash from allergic reaction to antibiotics and just had a cortisone injection and have cortisone tablets, after how long will the rash go away?
7-14 days: Usually one week or less after stopping med, but can take as long as 2-3 weeks.
I had an allergic reaction to antibiotics almost a week ago, My face is still swollen! Should I be worried?
No, but keep caution: Since you stopped the antibiotic, it should clear from your system, some antibiotics take longer to clear, depends too if you're on other meds, you might want to take an antihistaminic on regular basis, hopefully you don't have horseness or shortness of breath, if so, please see your doctor, goodluck
How long will it take for numbness and swelling/pressure to subside after an allergic reaction to antibiotics?
Allergy to antibioti: It helps if you treat it with steroids and antihistamines. It shouldn;t take but a few days though occasionally it can last a few weeks.
I have allergic reaction from antibiotic cephalexin. What is the best antihistamine and how long will it take to clear up, also now have swollen face?
Have you been seen?: This is an urgent situation. Hopefully, you have been seen by a physician. If not, proceed to the ER if the swelling involves the mouth (potential for progression to throat and breathing incapacity). If you are improved, then an urgent visit in the morning (or Virtual Consult) is recommended for prednisone (for phenomenon of delayed reaction). Cetirizine 10mg twice a day if no contraindications
I'm having allergic reaction to antibiotic (hives and itching). Can I continue my antibiotic treatment if I pair it with antihistamines?
Have a tooth infection but lm seem to have allergic reaction to antibiotics what can I do get rid of infec in a lot of pain peroxide mouth rinse?
Allergies: Some people have reactions to antibiotics but are not really allergic, or they are allergic to one but not another. You cannot fix this problem without seeing a dentist. Please call a dentist for an appointment and feel better soon.See 1 more doctor answer
I had an allergic reaction to antibiotics and the rash is getting worse. I had blisters in mouth, genitals, and now they are in my nose. Benadryl (diphenhydramine)?
You need a doctor!: Benadryl (diphenhydramine) will not do the trick!! You need to get yourself to a doctor asap. Blisters in the area reported imply something more serious like Stevens Johnson syndrome and you really shouf NOT be treating this yourself. Go to the ER or your own doctor. Don't waste time treating this yourselfSee 1 more doctor answer
Atypical: This medication is safe. A small percentage of people develop allergy, which can be an immediate allergic reaction to Keflex alone, or to the family of antibiotics related to Keflex. Sometimes, particularly in cases of mononucleosis, a rash that is confused with allergy develops after antibiotics are taken. It is best to discuss any symptoms with a physician well-practiced in diagnosing allergy
Not uncommon: Not uncommon.Get a more detailed answer ›
Yes: Yes, you can get the allergic reaction afterwards. Some physicians refer to this as delayed allergic reaction.
Avoidance: If one is allergic to penicillin then avoidance of penicillin like medications is a requirement. Other classes of antibiotics should be fine but because an individual has one drug allergy they may be at risk for reactions to other classes of drugs. One should also be very clear that moving forward that antibiotics are needed.
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