Diesel? That doesn’t sound good
I’d try cleaning with apple cider vinegar - 1:1 mixed with water, natural and works wonders on yeast infections etc
Vet you can try Hands N Paws @ Merchant Square (assuming you’re in KL), best I’ve found so far.
S0S - Help Needed - Severe Fungal Infection (Dog), Advice/reommendation needed urgently