It is recommended that you rely on product packaging or manufacturer information. The ThermalOn Stye Moist Heat Compress is ready in seconds to relieve burning, itching and stinging. Application of moist heat is a doctor-recommended method for treating painful styes. Simply microwave the ThermalOn Stye Moist Heat Compress and apply several times a day. The deeply penetrating moist heat helps to draw out the stye while providing temporary relief from burning and irritation. The ThermalOn Stye Moist Heat Compress features patented Hydro Pearls technology. The compress is naturally hydrating, non-allergenic and washable. It may be applied as often as necessary and will not interfere with prescribed or OTC medications.