What are the major causes of skin allergy?

It is very common for babies to get skin rashes and itching. Few home remedies which can be used to help baby get rid of skin allergy include using- 
– Use apple cider vinegar as it has antibacterial qualities, which helps in getting rid of rashes.
– Aloe vera gel is the most natural and mild, which can cure the sore area of the baby’s skin.