Asking Pharmacist for medical advice is a NON-American thing. Very common in Europe, Middle East and South America, but here the Pharmacist could be brought up on charges for practicing medicine without a license,
Generally, a swollen toe/foot can be soaked in Epsom Salts and warm water to hold you until you can see a doctor. If you find it getting red/warm to the touch there is a good chance you have an infection and may need anti-biotic treatment…head for the Emergency Room or Walk-In clinic at once if it is red and warm.
Don’t take chances, see a medical professional, not a pill dispenser