His not feeling good

Right now my hubby is not feeling good, His sinus is back again and his eyes is so itchy, it makes him feel lousy. I really dont like to see my husband get sick, it makes me so worried and the worst thing to it is he so grumpy when he is not feeling good. I told him to take medicine but he is hard headed, because for him it doesnt do anything. Hmmmm Sometimes he makes me mad because he dont drink much water also coz for him ice tea is enough and it is better than water..pero lahi ra ba gyud ning mo inom ta ug plain water gyud dba guys? Sakto ba ko???? ahehehe