Hi Amber. Allergies can definitely cause this type of reaction but another concern here is hives and angioedema. Although hives and the swelling known as angioedema are an allergic type of reaction, the cause is often not known as compared to allergies where it can be pinpointed with diagnostic tests. Hives comes and goes for sometimes no reason, or at least reasons that are not easy to identify. Speak to your doctor about this condition. You may need to start medication like corticosteroids if antihistamines are not relieving the symptoms. Your doctor will advise your further.
Dry eye (keratoconjunctivitis sicca) is a common condition caused by decreased tear production or poor tear quality. It is associated with increased age, female sex, medications (., anticholinergics), and some medical conditions. 29 Diagnosis is based on clinical presentation and diagnostic tests. Tear osmolarity is the best single diagnostic test for dry eye. 30 , 31 The overall accuracy of the diagnosis increases when tear osmolarity is combined with assessment of tear turnover rate and evaporation. Some patients with dry eye may have ocular discomfort without tear film abnormality on examination. In these patients, treatment for dry eye can be initiated based on signs and symptoms. If Sjögren syndrome is suspected, testing for autoantibodies should be performed.