My DD had surgery for Hip Dysplasia last Monday and in a body hip spica cast. I noticed today that she had a weird rash with white spots in the inside of her cast (swelling has gone down so able to look now) Took her to GP who said she had mini boils so gave some antibotics to take orally. Only thing is she is spitting it out and refusing to take. Any suggestions/helpful tips pls. Am very tearful as very exhausted.