You can use the Psionic Healing skill to cure diseases.

Prerequisite: Psionic Ability, Psychometabolism, 5 or more ranks in the Psionic Healing skill

Benefit: You can psionically remove diseases affecting living creatures (including yourself). This requires a Psionic Healing skill check with a DC of the disease’s save DC. On a successful check, you eliminate the disease, preventing it from doing any further damage to the target, although any damage already done remains and must be healed.

Strain: 5.