Propolis is basically a resin mixture that is collected by bees from tree buds, from sap from trees, and from other plant sources. From the point of view of the bees, it is used as sealant for the unwanted open spaces in a bee hive. Bees collect the resin and use it to fill up these spaces in the hive. The most common color of propolis in its natural form is brown. At room temperature it is generally of a sticky consistency, and as the temperature is lowered it tends to become hard and brittle.
In the medicinal sense, propolis is used as medicine to treat bouts of inflammation and a few viral diseases, as well as superficial burns, scars, ulcers and so on. Propolis is also sometimes taken as a health supplement and is believed to reduce the chances of developing a cataract. It is sometimes also recommended as a remedy for a sore throat, although the most effective sore throat remedy remains the warm salt water gargle.
In any case, coming to the side effects of propolis - the only down side of propolis is that if you allergic to bees or bee products, then propolis is dangerous and can cause severe allergic reactions. Normally, if you are not allergic to these products, propolis is entirely harmless and has lesser side effects, except of course if taken in excess, which applies to any substance including water. If you have an allergy, some of the effects of propolis are redness of the skin, rashes, itchiness, contact dermatitis, psoriasis, sores on the mouth, and cracking of the skin. If you want to take propolis, the best way to go about it is to start with small doses at first and then gradual increase the dosage if lesser side effects are found.
answered by G M