A shape compliant wearable Photo-Dynamic Therapy (PDT) pad comprises an outer layer having an outer surface adapted to be exposed to the ambient, an inner layer having an inner surface adapted to be in contact with a body of a user, a metallic sheet provided between the outer layer and the inner layer, the metallic sheet being shape compliant, and a plurality of Light Emitting Diodes (LEDs) provided between the inner layer and the outer layer. The plurality of LEDs is configured to emit electromagnetic radiation towards the body of the user. Also, the inner layer and the metallic sheet include an enclosed cavity therebetween, the metallic sheet is configured to be maintained at a negative potential, and the inner layer includes a plurality of air holes providing a passage for ambient air to enter and exit the enclosed cavity.