Unfortunately there is no ATM in Sougia this year, so you should bring with you cash for your local transactions. The nearest ATM is in Kandanos and Paleohora, which are 27 and 32 km respectively.
Refuel the car before your visit Sougia. The nearest gas stations from Sougia is in Agia Irene, Kandanos, and Paleohora, which are 19, 27, and 32 km respectively.
There is no pharmacy in Sougia. It would be wise to have with you any medicine that you feel could be useful during your stay. The nearest pharmacy is in Kandanos and Paleohora, which are 27 and 32 km respectively.