Abstract: This application discusses methods and compositions for preventing and treating ailments and/or diseases, such as HPV, with carrageenan. Moreover, methods and systems for administering carrageenan are described herein. In some embodiments, carrageenan (i.e., carrageenan, carrageenan prodrugs, carrageenan metabolites, carrageenan derivatives, and so forth) may be used prophylacticly in order prevent and/or slow a subject from receiving an ailment and/or disease. In other embodiments, carrageenan may be used to treat, suppress, and/or ameliorate an ailment and/or disease after a subject has a condition. While carrageenan may be administered alone, in some cases, the beneficial effects of carrageenan can be synergistically or additively improved by co-administering carrageenan with a polyamide, a polyamide-like compound, and/or surfactant.