How can i ease the sore and burning in my throat and gullet from reflux i've tried gaviscon but find it makes the burning feel worse

Try other anti-acids: Your symptoms do sound like reflux. Antacids such as Gaviscon are typically tried first. If ineffective, histamine receptor blockers, such as cimetadine and ranitidine (Zantac) are next. After this are the PPIs (proton pump inhibitors), like omeprazole/Pepcid which cause your stomach to make less acid. All of these can be tried (OTC) and used as directed. If symptoms persist, see your doctor.