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I have really bad sunburn with a fever and nausea even while taking naprosyn, (naproxen) do I need to see my doctor? Is it ok also to use lidocaine spray?
Na channel blocker: Yes, it is a sodium channel blocker, so it is used as local anesthetic and as anti arrythmic agent. Local anesthetics (lidocaine ) block the influx of sodium and prevent the generation of an action potential and its transmission along a nerve. ...Read moreSee 1 more doctor answer
Local anesthetics: In combination Lidocaine + prilocaine = EMLA (lidocaine and prilocaine) topical cream. Lidocaine is a local anaesthetic of the amide group and commonly used for this purpose (e.g. dental office). Prilocaine is a local anesthetic of the amino amide type and used for local anesthesia. ...Read moreSee 1 more doctor answer
How much?: If just a tiny bit was consumed say a pea size amount nothing will happen but you may get a numb tongue or posterior pharynx ( back of throat ) for an hour or so. If the entire tube was taken i would see how many milligrams of lido/prilo were in the tube . Much of the medication would be broken-down in the stomach but you would absorb some. If you ate the entire tube i would go to the er. ...Read more
Two different meds: If I understood your question correctly, lidocaine (an amide) is also a local anesthetic, yet chemically it is different from tetracaine (an ester). The chance of allergic reaction is higher with ester-type drug (Novocaine, tetracaine). Duration and metabolism is also different. One should consult a doctor with the specific questions regarding safety. Hope that helps. ...Read more