Good morning girls, moms? A question from almost 4 months old baby, o…

Good morning girls, moms? A question from almost 4 months old baby, on legs for a week now there have been such "goosebumps". It doesn't go away, they get bigger every day. I've been giving Fenistil for three days, it doesn't help. Have you ever encountered something like this? How to fight? On breast milk, nothing special added to the diet and we bathe in herbs