you have been invited to spend Christmas with friends . write to explain that you prefer to be at home at the season.

Such questions need to be attempted on your own to test your creative writing skills. However, these points might help you elaborate:
 
- Thank your friends for the kind invitation.

- Mention that you would be unable to join them as you develop a skin allergy during severe winters.

- Your skin grows dry and itchy, you would prefer to stay at home to follow the routine of taking medicines and applying ointments to control the allergic reaction.

- Regret the fact that you will miss out on the fun of celebrating Christmas with your friends.

- Wish them Merry Christmas and thank them once again.