When Mercury turns Retrograde in the house of Aries it would be fiery in nature like the nature of the sign itself. There would be confusions, contentions and antagonistic approach to all issues. Some sort of exaggeration would be involved in all matters. Mercury in Aries indicates clever thoughts but mental discipline is a must. The mind goes into an oscillation mode and there would be a tendency to jump into conclusions without any forewarning or forethoughts. There would be temper tantrums and nervous disorders. Massage and meditation could do well it give some relief.