“The flames of her hair devour my body with obscene shrivelling/withering.”

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shrivel (imply a shrinking, wilting)
- lose momentum, will, or desire; become insignificant or ineffectual.
"his spirit shriveled and his talent atrophied"
cause to feel worthless or insignificant.
"she shriveled him with one glance"

withering
- the action of becoming dry and shriveled.
the action of declining or decaying.
"withering trust in long-distance supply chains"

https://dict.drkrok.com/obscene/