fire / urgent / ammunition / fiery or flaming / internal heat (Chinese medicine) / hot (popular) / classifier for military units (old) / Kangxi radical 86
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.