How can i relief my baby's diaper rash .. its been 2 weeks! Ive already put calmoseptine sometimes petroleum jelly. But it still there! Pls help me

momy try mo palitan diaper na gamit mo baka un yung causes nya..kc ung bby ko nun ng ka rashes din then ng palit ako brand ng diaper dun ng ok naman na..kc minsan causes ng rashes eh ung diaper mismo...