The model you describe does exist, pharmacies with an onduty pharmacist are allowed to prescribe a wide and large range of prescription-only drugs in Thailand,

The model you describe does exist, pharmacies with an onduty pharmacist are allowed to prescribe a wide and large range of prescription-only drugs in Thailand, cost is competitive - if you take the generics the brief consultation and antibiotic's can be as little as $1 total. This includes large chain pharmacies like Boots and Watsons, waiting for the onduty pharmacist at smaller independent might not be so strict/official and better for certain hmm..