炎
=
火
:
Mnemonic symbol: As I just learned "itis" is the feeling you get after eating too much.
Maud Younger (y) ate too much in the anthill's kitchen (an2). She's having the itis (炎) so hard that she doesn't even wake up from the fire (火) which is spreading fast.
症
=
正
+
疒
:
The stick figure (正) is visiting James II of England (zh) in the engine's bathroom ((e)ng4) to have him investigate his colorful rash (疒). Unfortunately James II of England has to tell him that he has cancer (症).