you can get patches called something like uticara after a sore throat and there's something else called what sounds like 'psorasis rosecia' (spelling, spelling?? no idea and in too much of a hurry to check) both are harmless but will benefit from dermol or diprobase from GP.
(i suffer from both frequently, the rosecia are seasonal and normally confined to trunk).
HTH.
bath time and vast pile of nappies to sluice awaits...sob.