Doctor insights on:
Allergic Reaction Rash
Skin usually: Adverse reactions to Fluconazole are uncommon but can manifest in various ways, but usually involve skin reactions including mucus membranes like oral ulcers. Other organ systems that can be affected include nervous, heart, muscle, eye and kidney. I just saw a young lady with second episode of severe mouth and vaginal symptoms after Diflucan (fluconazole) dose. It happens. ...Read moreSee 1 more doctor answer
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
No: Rosacea is an inherited condition characterized by extra sensitive skin, flushing, dilated blood vessels, inflammatory bumps that mimic acne, and enlarging bumpy nose. Common triggers are chronic sun exposure, caffeine, alcohol, and increase in core temperature, etc...The inflammatory reaction of rosacea is not histamine driven as it is in an allergic reaction. ...Read moreSee 2 more doctor answers
Allergy to insect bi: Most of the allergies to insect bites caue local reaction and itching.But some people have severe reaction to insect bites and stings especially bee stings.This is a life threatening allergic reaction and is called anaphylaxis, this can cause breathing difficulty and is an emergency.Need to be treated with Epipen (epinephrine) injection and emergency treatment. ...Read more
Can Benadryl (diphenhydramine) help a swelling and hive reaction (itching) allergic reaction to penicillin?
Depends: on the reaction, if just hives and itching, yes benadryl (diphenhydramine) can control it in the right dosage, after discontinuing the offending drug, but if more severe symptoms/swelling you need medical attention with the possible addition of epinephrine and probably steroids, ...Read more
Sulfa allergy: Drug allergic reactions can take on many forms including: hives, swelling, blistering, dry itchy patches, non itchy red flat or slightly raised areas. To determine if a rash is related to a medication typically requires reviewing when a medication was started, when the rash started, other medications taken, infection being treated etc. There is no allergy test for sulfa. ...Read more
Yes: Allergy to the entire class of antibiotics called cephalosporins is indeed possible. That allergy would be the common part of the molecule shared by all cephalosporins and penicillins, the beta-lactam ring. ...Read more
Yes,it's mild: A eaction to chickenpox vaccine would occur about 5 days after the shot. The patient may get a little chicknpox-like rash around the site of the shot. It is not common, and not serious. The disease if your child is not vaccinate would cause much more uncomfortable symptoms than the possible side effects of the vaccine. So give your child the chickenpox vaccine! ...Read more
Not always: I am answering the question that i often get about armpit stinging with deodorant, this can be immunoglobulin e mediated allergy or cell mediated allergy (delayed type hypersensitivity, or type IV sensitivity) or merely irritation. A patch test can determine delayed type hypersensitivity, ige allergy is less commonly tested, irritation is diagnosed by the lack of other mechanisms. ...Read moreSee 1 more doctor answer
Yes: All vaccines have adverse reaction profiles much like medication we are taking or prescribed. The extent of severity is quantified and compared to a control or non treatment group. Reactions can be local and mild versus more systemic/body related. The varicella vaccine (aka chickenpox) is very safe. Allergies to egg whites-albumin is a contraindication to this shot (like mmr). ...Read more
Allergy testing: Only physicians trained in the specialty of allergy, asthma ; immunology are trained in a monitored situation during residency to perform skin testing for ige-mediated allergy. Some ENT programs are adding this to their training. If you were skin tested by a non-specialist, consult a specialist, if you were skin tested by an allergist, it is likely that you are unusally allergic. ...Read more
Keep pollens away: Eliminate exposure by using facial mask, high efficient hepa filter and vacuum your carpet more often. Use AC at home and when you drive in bad allergy season. Besides, there are OTC oral antihistamines, decongestants, and inhalers available. If not improve, talk to your doctor or allergy specialist for more potent treatments including nasal antihistamines, steroid inhaler and immuno-therapy. ...Read more
Anyone know how long after taking a new medicine that an allergic reaction (rashes, itching etc.) would occur?
See below: Most reactions start from the 1st to 4th dose of a medicine. ...Read more
Variable: Hives or urticaria may wax and wane then resolve within a day or 2 after ingestion or contact with a food allergen. However, poison ivy or nickel allergic contact dermatitis may take 4-6 weeks to eventually resolve. The time to resolution is also impacted by what medications are taken such as oral corticosteroids such as prednisone, which can decrease the time significantly. ...Read more
A few days: Rashes from something you ingest typically last for just a few days or less. The bigger question is what really caused the rash. People break out in rashes from time to time, and it's just human nature to blame the rash on something we ate in the last few hours. If the rash is continuing for more than a week, it probably has nothing to do with the echinacea; you should see your pcp to check it out. ...Read more
Time and meds: Most medication reactions will begin to improve within 48 hours after stopping the medication. To ease the symptoms of a drug allergic reaction, antihistamines such as zyrtec, Claritin (loratadine) or Allegra can help. On occasion oral steroids like Prednisone are needed. If the rash is blisters or progressing, then a doctor's visit is important for further evaluation and treatment. ...Read more
How long will an allergic reaction rash from keflex last? I was on the pills for 13 days before the dr finally said it was an allergic reaction
Benadryl (diphenhydramine) tabs take about 1 hour to start working to treat my allergic reaction (rash) Would Benadryl (diphenhydramine) IM be a faster alternative? Can I obtain an RX?
Depends: Benadryl (diphenhydramine) may help hives but not a rash which has lasted more than 24 hrs. IM Benadryl (diphenhydramine) gives you perhaps a 30-minute head start vs oral = not worth the cost or hassle. If you have throat swelling , you may need adrenaline and an allergy consult since this can be life-threatening. ...Read more
Have allergic reaction rash was given prednisone to take 60mg a day for 3 days, this seems like a lot. Do I need it or will they go away on their own?
High dose: There is no one correct dose for oral steroids, but most clinicians would dose according to the severity of the allergy or that particular person's previous response to oral steroids. 60 mg of prednisone is a high dose for some rashes such as hives but may be necessary for generalized allergic reaction like anaphylaxis. IDouble check with doctor to make sure that is the correct dose. ...Read moreSee 1 more doctor answer
Allergic reaction: If it is true allergic reaction, then avoidance of the allergen will curb the reaction hopefully. Using an anti-allergy preparation such as Benadryl (diphenhydramine) at night might help. Hydrocortisone cream once to twice daily on the affected areas excluding eyes may be tried for no longer than 2 weeks at a time. If those fail, definitely see a doc. ...Read moreSee 1 more doctor answer
Possible to have latex condom allergic reaction (rash/dry/slight itch) 12-24 hours after sex every time, if no reaction after masturbation w condom b4?
Are there any over-the-counter products I could take to help with an allergic reaction (rash of red itchy red bumps all over my body?
I have a bleeding sore in the crack of my buttocks as a result of a allergic reaction rash from wearing a pad. Is it best to keep it covered to heal?
Yes: Sores heal better if covered. Also remember to keep it clean. ...Read more
Have been taking macropen for 6 days and now have a fuzzy feeling on tongue. Is this possibly an allergic reaction. No rash or other signs/. Thank you?
Fuzzy tongue: No thats a FUNGAL over growth on the tongue from knocking out all the bacterial commensals in the mouth from 6 days of PEN. If you have normal T cells and if the overgrowth not too bad you can do nothing AND as the bact come back the fungi will go down. You can also get ANY anti-fungal OTC vaginal supp and suck one a day for 5 days and that will nail it too. Next time take antifungal Rx simultan ...Read more
How can I tell the difference between a rash caused by allergic reaction and rash caused by flesh eating bacteria?
Red versus dead: An allergic reaction is manifested by a raised red firm sometimes itchy but usually limited area whereas flesh eating bacteria create a rapidly spreading area of redness with fever and pain. The skin may blisters itch fluid or air bubbles or become grey/black. ...Read moreSee 1 more doctor answer
I wotre a knee brace that was too tight. On a knee that was already having an allergic reaction. The rash has spread all over my body? Help?
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