A chap stick will soothe around your mouth and make that go away.
Did you know that eating too many nightshades (tomatoes, potatoes, peppers & Aubergines) can swell your joints and cause dis-comfort? My husband can't eat them as he's a sportsman and they give him joint pain and back-ache. Same with constipation too (aches).
Tell Aunty about your diet - she may have some insight.