Constipation. Taking aloe latex by mouth can reduce constipation and also cause diarrhea.
Cold sores (herpes simplex virus). Some evidence shows that applying an aloe extract 0.5% cream 3 times daily increases healing rates in men with cold sores.
Itchy rash on the skin or mouth (Lichen planus). Research shows that using a mouthwash containing aloe 3 times daily for 12 weeks or applying a gel containing aloe twice daily for 8 weeks can reduce pain associated with itchy rashes in the mouth. Other research shows that using a mouthwash containing aloe 4 times daily for one month reduces pain and increases healing similarly to standard treatment in people with itchy rashes in the mouth.
Psoriasis. Applying a cream containing 0.5% aloe for 4-8 weeks seems to reduce the skin plaques and decrease the severity of psoriasis. However, using an aloe gel does not seem to improve other symptoms associated with psoriasis, including skin redness.