Hello moms, I wanted to ask if anyone else has encountered something l…

Hello moms, I wanted to ask if anyone else has encountered something like this. My baby (3 months old) sometimes develops such rashes on his face. It mostly turns red during crying, when he fusses and when he touches his face. We've been to the doctor twice, both times they said it's an allergy, prescribed treatment, we all took the medication. But then after some time, the same story again. From the medications we've taken and continue to take: fenistil drops, calcium chloride, bioteterool, immunocink and vigantol. I'm on a diet, the baby is exclusively breastfed. During the day I try to drink water, the baby has excess weight.