If he's throwing that kind of stuff at you at that low a level, then you're in a tough spot, regardless of what you're playing.
Oracles get Remove Curse/Disease as 3rd level spells.
There's also the Paladin's Mercy class feature.
You can get the Disease Mercy at level 6, and the Curse Mercy at level 9.
There's also the Bracelet of Mercy (from Ult. Equip.), it gives +1/day Lay on Hands and the Disease Mercy. If you already have it, you count as +4 levels for Removing Disease.