Typhoon Haiyan killed an estimated 10,000 in one area alone and several million need help.
The two island provinces worst affected are hundreds of kilometres from the capital Manila.
“Please tell my family I’m alive,” said one young woman, Erika Mae Karakot. “We need water and medicine because a lot of the people we are with are wounded. Some are suffering from diarrhoea and dehydration due to a shortage of food and water.”
Residents in Tacloban, the city worst affected, forced open a petrol station and helped themselves to supplies. One said he needed to travel by motorbike to look for food as local stores had been ransacked.