Father (68Yr) has asthma but had sever asthametic attack 20 years back due to DISPRIN and had to rush to hospital for emergency treatment due to sever breathlessness and also he is also allergic to tetra, sulfa drug in past and he had to take avil etc. So just wanted to ask vaccine is safe as per the allergies and asthma for him...And if yes then which one.He had Covid on 14th April 2021. He recovered in home isolation. Thats why I am waiting for 90 days and searching on vaccine very much as apart from allergy, asthma he is diabetic too. Kindly looking for guidance.