Rash , allergic reaction , Scarlett fever ????

[Dbf123]

Hi I wonder is there anyone who could give some advice on a rash my child has developed, I’ll add some pics.
for 10 days she has been on antibiotics for a throat infection and not long finished the course, after about 3 days of finishing the antibiotics she developed this rash so took her back to docs he thinks allergies to medication but when he checked her throat again it’s still very swollen tonsils and swollen glands so prescribed her a different antibiotic not penicillin based, the rash seems to be getting worse but she has no temp and never complained with her throat even befor we knew it was still swollen. I hope this all makes sense I feel at my wits end it’s been going on so long I just won’t her to get better.

Also forgot to add the rash does blanch when pressed

Hi, my son has this rash and I keep getting told by doctors it’s eczema. Nothing I try is helping, does anyone know what it could be?

Please help with advice

Hi how long has he had the rash ? Is it rough in some places if so I would definitely say eczema both my daughter get it and I find that putting epederm or any other zero based cream on nice and thick then some vasaline on top really help take it down gp told me it needs to be a thick layer to soak into the skin x