To travel to the Philippines, for her no problem even with a passport have 1 day remaining you can travel as it's your citizenship country.
Then you have to renew your passport in the Philippines, it's quicker and far less expensive than from UK. You will save time and money.
As you're staying in Tacloban, here is the DFA address there:
DFA Regional Consular Office
OIC: EDMUNDO V. VENTURANZA
Leyte SMED Center, Capitol Site
Tacloban City
Tel. Nos: (053) 321-8233 / 5230080
Fax No: (053) 321-8237
E-mail: taclobanATdfa.gov.ph
and the requirements: http://www.dfa.gov.ph/consular/renewal.htm