Aloe Vera Enriched. Hours of comfort - Fast. Thera-Gesic Plus provides extended relief or minor aches and pains associated with arthritis and lower back strains. Thera-Gesic Plus contains both Menthol and Methyl Salicylate as a topical analgesic for penetrating pain relief. Thera-Gesic Plus also contain Aloe Vera as a skin conditioner.