Q: Grandma, I have a very itchy, stubborn rash on my lower back near the tailbone. Worse, it is spreading to my anal area. Please help me with some of your safe remedies.
A: Dear [name], Skin rash is a common problem which is often responsible for bringing people to the doctor for consultation. Rashes on lower back, just like what you’re experiencing, can be due to various factors. In some cases, the reason can be local while in others it can be systemic. Possible local causes of lower back rashes include insect bite, contact allergy (dyes, detergents and cosmetics), allergic dermatitis (allergy to latex, rubber, and elastic), and over exposure to sunlight. The possible systemic causes, on the other hand, include chickenpox, Lyme disease, measles, scabies, streptococcal sore throat, ringworm infection, drug reaction, rheumatoid arthritis, and systemic lupus erythematosus.
Regardless of the cause, there are a number of home remedies for lower back rashes that you can try without compromising your overall safety.
HOME REMEDIES FOR LOWER BACK RASHES
1. Aloe Vera Gel – Apply Aloe Vera gel on the problem area. Aloe Vera is already proven to relieve itching brought about by skin rash. It is an effective soothing agent for the skin and is very safe to use because it’s natural and does not contain any harmful substance that can irritate the skin.
2. Chamomile-Marigold-Calenndula – Chamomile, marigold, and calendula are also effective at providing relief of itchiness. Tea prepared from these herbs, when applied to lower back rashes, alleviates itching, redness, and swelling.
3. Sandalwood Powder – Make a paste out of sandalwood powder and rose water and apply on the affected skin. Both of these substances have soothing quality.
4. Benntonite Clay – Poultice prepared from bentonite clay is also effective in curing rash on lower back. 
5. Oatmeal Bath – Oatmeal bath is likewise a powerful yet cheap method of relieving lower back rash. Simply mix one cup of oatmeal with the water in your tub. Soak the affected area in the tub for about15 minutes. You should start getting instant relief from itching and inflammation.
6. Baking Soda and Water – Yet another one of the most effective home remedies for lower back rashes is the application of baking soda. Just add a few drops of water to one tablespoon of baking soda and apply the mixture directly on the problem area. Air dry the area for about 15 to 20 minutes. Rinse it gently with warm water or use a moisturizing toner to remove the paste. Pat dry the area before applying any type of lotion, cream, or other skin care products. 
7. Olive Oil – Applying olive oil on the rash is also proven by some to help soothe the skin and decrease the desire to scratch the rash. 
8. Cucumber – Apply cucumber puree directly to the lower back for three minutes to relieve itching and inflammation.
9. Jewelweed – Boil Jewelweed in one gallon of water. Strain it and let it cool. Apply the liquid on your lower back to soothe the rashes. 
10. Almond leaves – Thesese leaves have soothing effects on the skin. Simply apply mashed almond leaves on the problem area to relieve itching.