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.
Nasal decongestants. background. Decongestants relieve nasal and sinus congestion (stuffy nose) caused by allergies or colds. These drugs shrink the tissues and blood vessels in the eyes and nose that swell in response to a cold or contact with an allergen (substance that causes an allergic reaction).