how to raise blood pressure immediately at home, here are a few tips:

Increase Fluid Intake: Drink plenty of fluids, such as water or herbal tea, to help increase blood volume and raise blood pressure.
Add Salt to Your Diet: Consuming a moderate amount of salt can help increase blood pressure. However, it’s important to consult with a healthcare professional, especially if you have any underlying health conditions.
Eat Small, Frequent Meals: Consuming smaller, more frequent meals throughout the day can help prevent a drop in blood pressure that may occur after large meals.
Wear Compression Stockings: Compression stockings or socks can help improve blood circulation and raise blood pressure by preventing blood from pooling in the lower extremities.
Avoid Alcohol and Caffeine: Limit or avoid alcohol and caffeinated beverages, as they can lower blood pressure.