Rubbing Alcohol on your skin isn’t a good idea as it destroys the upper layer of your skin. Alcohol contains chemicals that could strip essential lipids, proteins and fats, making your skin prone to inflammation.
Simply rubbing mayonnaise isn’t a good idea as it clogs pores and your skin wouldn’t be able to breathe. Clearly, this ingredient shouldn’t be used.
Lemon Juice can make your skin more prone to UV radiations and sunburns. As lemon is acidic in nature, it can alter pH level of your skin, thus making your skin easily inflamed and irritated.
Baking soda is alkaline in nature, thus destroys your pH of skin and hence the top layer of your skin. This would invite bacteria and other problems for your skin.
Using Eggs with other ingredients could be safe but Raw Eggs aren’t a great idea if you want soft and supple skin. Salmonella bacteria present in raw eggs cause food poisoning and thus staying abstaining from it is a good thing, especially if you care a lot for your skin.