Sun Pharmacy Plus Drug Store

Sun Pharmacy Plus is the kind of no-fuss counter you’re grateful to find when Bangkok’s heat or street food catches up with you. Just off the Khao San circuit, it’s stocked for travelers: sunscreen and after‑sun aloe, high‑DEET mozzie spray, oral rehydration salts, blister plasters, charcoal tablets for dodgy stomachs, antihistamines for bites and dust, plus all the travel‑size toiletries you forgot to pack. The staff are used to backpacker questions and can help you match Thai generics to the big brands you know—show them a photo of the box and they’ll point you to the local equivalent. You can often buy single strips or small packs instead of a whole box, handy if you’re between buses and boats. For anything beyond over‑the‑counter fixes, head to a nearby clinic or a major hospital across the river at Siriraj; for the everyday bumps and burns of Khao San life, this place will sort you out fast and without drama.