Girls, hello)) We went to the pediatrician today, she said allergy is …

Girls, hello)) We went to the pediatrician today, she said allergy is probably going on Johnson & Johnson cream (yesterday I wrote about this). She prescribed Fenistil. And she says there's a Fenistil gel, should we apply it anyway, or just give drops? Give me some advice, is it worth applying gel, after the oil, I'm scared, who used the gel? Poor my child, completely blistered to the point of being awful ?? All night I blamed myself, and now I have no mood...