Unless advised by a doctor, topical anesthetics should not be used on or near any part of the body with large sores, broken or scraped skin, severe injury, or infection. They should also not be used on large areas of skin.
Topical anesthetic medications must be selected carefully and used in proper amounts in order to prevent harmful reactions. For instance, some topical drugs should be used only on intact skin to avoid rapid absorption into the body.
Overall, topical anesthesia tends to be very safe. Minor problems might include discoloration of the skin at the application site or an uncomfortable feeling of numbness that lasts longer than expected.
The precautions for having this x-ray test are allergic reactions to anesthetics, dyes used in medical tests, iodine, shellfish; those with cholangitis, massive ascites, bleeding disorders, diabetes.
There are different types of anesthetic. Some states may allow assistants to apply topical anesthetics, but no state allows assistants to inject local anesthetics or induce nitrous oxide or general anesthetics.
One common use for topical anesthetics is to relieve pain from problems such as sores in the mouth, skin scrapes, and hemorrhoids. The other broad category of use for topical anesthetics is to prevent pain from medical examinations or procedures
You need to understand that piercings cant be frozen, injection and topical anesthetics will distort the tissue and cause the piercing to be twisted and misaligned besides this point professional body piercers can not legally use injection anesthetics and topical anesthetics only work for specific piercings. Really what's the point in getting anesthetic for a piercing if you need to be poked with a needle to get the piercing done in the first place.
.They are not intended or ophthalmic (eye) or otic (ear) use. Application to mucous membranes should be limited to appropriate formulations.Gentian violet is labeled with a warning against use in pregnancy.
No necessary precautions to observe in the diet.
The use of injection anesthetics by professional body piercers in North America is illegal. Talk to your piercer there are other options like topical anesthetics, but these should only be used with the knowledge and supervision of your piercer.
Topical antifungal drugs have no recognized drug-drug or food-drug interactions
Polysomnography is extremely safe and no special precautions need to be taken.
No particular precautions have been reported as being necessary in using cyperus.