Carrots are rich in carotenes, which are substances related to vitamin A. They're found in the orange pigments and are good for you, but, if you eat lots and lots of carrots, you can develop a yellowish or orange cast to your skin. It's mostly noticeable on the soles of your feet and the palms of your hands.
Benadryl is another decongestant safe for use in cats, although it is usually not as effective as chlortrimeton in treating congestion. Benadryl is generally more beneficial with treating snake bites, reactions to vaccinations, itching, and insect bites.
Buprenorphine, a partial agonist, is appropriate for moderate pain in cats, and some studies suggest it provides analgesia superior to oxymorphone, morphine, and meperidine hydrochloride.1-3 Buprenorphine is well-absorbed when given by the oral transmucosal route,4 making it easy to prescribe for at-home use.