It is not recommended to share inhalers, as medications are prescribed specifically for each individual. Sharing inhalers or other medications can lead to the spread of contaminants such as bacteria and viruses. It is better to dispose of items like toothbrushes and makeup after being ill to prevent any potential contamination. Taking precautions and being vigilant with hygiene practices can help in preventing the spread of illnesses. Additionally, it is common to feel exhausted and irritable when dealing with an illness, especially with the added stress of quarantine. Taking zinc supplements may offer some support, but it is important to consult with a pharmacist to ensure it is safe and appropriate for you.