medications that control allergic reactions
antihistamines
decongestant
At the beginning of the procedure, medications to control blood pressure, dilate the coronary arteries, and prevent blood clots are administered
There are medications available to treat AIDS. Retroviral medications are used to fight the virus, and other medications are used to control symptoms or treat/prevent opportunistic infections.
In psychiatric care centers and prisons, medications are usually administered as liquids followed by a glass of water to prevent later hoarding of medications.
Vacuuming and spraying with a antiallergy spray with prevent cat allergies.
Cetirizine is the generic name for the active ingredient in the allergy medication Zyrtec. It is effective for hay fever and other allergies that produce upper respiratory symptoms such as itchy or watery eyes, sneezing, runny nose and sore or itchy throat. It can alleviate some of the symptoms of hives and skin conditions brought about by allergies, but is not intended to fully treat or prevent hives or other skin reactions.
Since some allergies can be controlled by the environment/climate you live in, in that sense you can. For example, a person moves to the Northwest and develops allergies they never had in Arizona. Other than that, you can get allergy shots but those are not recommended unless the allergy is extremely severe or an absolute pain in the neck on a day to day basis and even then are not a 100% guarantee to work. Medications like Zyrtec can be taken to suppress allergies, but it doesn't make them go away entirely. You can prevent 'attacks' resulting from allergies by just being cautious and smart. Just taking care to not come in contact with the things you are allergic to is probably your best bet.
use allergie pills
This may not PREVENT allergies, but maybe allergy shots may stop them for good. It may work if you take it once per month.
Acetaminophen
Vaccines prevent diseases, medications treat them.
antidepressants
antidepressant