Horrible experience

I have purchased 3 packs of Always ultra thin value packs 16 from one retail stores After using 2 pads from that same pack I started to be uncomfortable, i had a terrible pad rash i then stopped using the pads from that pack , i went to consult with my doctor and was confirmed that rash was from the pads used. I had suffered horrible pain due to Always pads .I have been using the brand since and never experienced such incident, worse the packs did not have expiring date like usual