Panel 1: We find ourselves watching Elly holding up a box of cold medication with the brand name "Un-Plug"; Un-Plug is described as being fast-acting and as relieving nasal and sinus congestion due to colds and allergies.
Panel 2: She then holds up a bottle of Koff-Stop which promises long-lasting relief from pain and fever. The medicine within that acts a cough suppressant soothes sore throats and controls coughing and irritation.
Panel 3: Elly coughs extremely violently.
Panel 4: Since Elly is an idiot who doesn't understand how medicine works, she mutters "Probises, probises, probises" at the lying medicine that doesn't work because instant relief takes too long.
Summary: It would be worse than useless to try to explain to Elly that the medicine has to enter her bloodstream in order to even begin to work because she knows better. After all, the woman on the ad takes Un-Plug and it works in seconds!!