Sir, both your conditions can be managed by proper diet and daily routine.
Start the day before 7. Drink lukewarm water. Do pranayama/ yoga/ any exercise of your choice. Have freshly prepared warm cooked food only. Include lots of green leafy vegetables and fruits in your diet.
Avoid non vegetarian food, spicy, masala, oily, fried and bakery items.
Avoid exposure to cold,dust,wind, avoid ac and avoid what causes you allergic rhinitis eg. May be its pollen grain or dust or animals or any other substance.
Avoid stress. Sleep before 9. Keep your digestive track and mind in good condition.
Next Steps
For further information please consult through practo.
Health Tips
Turmeric, ginger, garlic, pepper which is easily available in household will help in digestion and gas trouble. Include these in your curry, sabji, soup etc.