Doctor insights on:
Allergic Reaction Take
Usually fast: Most common allergic reactions to pollen, insect stings, foods, etc., are immediate hypersensitivity reactions, meaning they occur within seconds to minutes. But you can also have a late phase, a second-wave of reaction that occurs hours later. Contact allergies (poison ivy, nickel allergy, e.g.) and some medication allergies are delayed, and may take hours, days, or weeks. ...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
Depends on severity: Minor allegic reactions, with local swelling and itching, usually resolve within 30 to 60 minutes. When someone has a more severe reaction, in which swelling or hives occur, sometimes the reactions take several days to resolve. As always, if you are ever having a reaction in which breathing is compromised or there is swelling in the throat, call 911 immediately. ...Read more
Depends: It depends on the individual. If you've never had a reaction, the first reaction may take several days of therapy to show up. If you've had a previous reaction, the next reaction will usually show up sooner, and greater, than the first reaction, so use caution if you've had a previous reaction. ...Read more
Variable: All i can say is variable. Once someone has developed an allergy to something a reaction will take place fairly quickly after exposure. As long as you continue to be exposed the reaction will continue. Once you stop exposure then the reaction will often slowly ramp down but may require steroids (topical or systemic). ...Read more
How long: Minutes to hours. Depends how bad it is and how allergic you are. ...Read more
If I get severe irritability when I take benadryl (diphenhydramine) is it still ok to take occasionally when having an allergic reaction? Safe to take?
I was prescribed prednisone for severe allergic reaction, should I take it till the rash is gone or till the prescription is gone?
Bug / insect bites with allergic reaction. Can i take hydrocortisone and Benadryl (diphenhydramine) to cure?
A week: Drug reactions usually take 7-10 days to clear after stopping the medication. ...Read more
24-96 hours: Contact reactions to hair dye are similar to that of poison ivy although the distribution is usually limited to the scalp, neck, shoulders and sometimes upper chest. It falls under the category of a type IV hypersensitivity reaction. This is different than a reaction to pollen or pets which cause immediate symptoms ( minutes to a few hours) called a type I reaction. It appears in 24-96 hours. ...Read more
Have low t. Was using patch but allergic reaction. What can I take until I see doc. Again was starting to feel differently don't want feel down again?
Is it possible to take allergic reaction to 100mg atenonal, lungs fill up with fluid, and out of breath.
Yes: The medication atenolol which i believe you may be referring to, is a beta-blocker type medication used for treating high blood pressure, etc. Any medication can trigger an allergic reaction and these can be severe. Beta-blocker medications can trigger asthma symptoms in those with or susceptible to asthma. ...Read moreSee 1 more doctor answer
Did I have an allergic reaction to msg? I take mirapex .5mg for rls. While eating a chinese meal i became violently ill within a minute - lost all color, sweat profusely, skin cold and clammy, was incoherent, extreme nausea and profound sick feeling, no
Sounds like MSG: Reaction, also called chinese restaurant syndrome. Results from severe vasodilation of blood vessels as an idiosyncratic/exaggerated response to msg (everybody gets at least a little of that if the dose is high enough, some are very sensitive to even small amounts). I don't think the RLS or the Mirapex (pramipexole) are related, but you could share the story with your doc. Some asian places don't use msg. ...Read moreSee 1 more doctor answer
I had a wheatgrass shot then some carrot juice with banana. I'm having nausea and headache. Could it be an allergic reaction? Should I take Benadryl (diphenhydramine)?
Possible: but some wheatgrass are infested with insects or their eggs as well. If you have itching ,then allergy is a more likely scenario. If not, it is difficult to tell for sure. Don't touch these products again until after you have talked to your doctor . If you still have the wheatgrass and had tolerated banana and carrot before . save a sample of the wheat grass in case it needs be examined. ...Read more
My mother in law took Ibuprofen 800. Ate some avocado and has having an allergic reaction can she now take Benadryl (diphenhydramine)?
Allergies: It depends on the symptoms? Go to the er if they are bad or you had a previous history of a bad reaction. Don't take a chance. For a mild skin reaction take antihistamines. ...Read more
Depends: Immedite type reactions can occur i minutes. Contact allergies can take several days to show itself. Some drugs reactions can appears as long as 2 weeks after stopping the antibiotic and can persist for up to 6 months. Some sensitivities will not show at the first exposure, will show only with subsequent exposures. ...Read more
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