my dad came over and said it looks like an allergic to reaction since he's acting normal and doesn't…

my dad came over and said it looks like an allergic to reaction since he's acting normal and doesn't have a high fever he gave him some hydrocortisone cream for the itching if he starts itching you again if it doesn't go away tomorrow then I'm going to have his dad take him to the doctors in the morning definitely asking his daycare lady what she fed him if she fed him something different because I only give him breast milk at home and he eats Jarred Foods at daycare which I allow