Asanas traditionally used for various diseases

Appendicitis:
Start out with Sirsasana and Sarvangasana (combined with fasting and mild enemas and Blackberry leave tea), when pain is under control add Maha-mudra, Poorvottasana, Paschimottasana. (Warning: acute cases may require immediate surgery - see your doctor)

Asthma:
Sirsasana and Sarvangasana, Maha-mudra, Uttanasana, Paschimottasana, Salabasana, Virasana, Paryankasana, Bhujangasana, Mukha Svanasana, Uttanapadasana, Poorvottasana, Pasasana, Dandasana, Dhanurasana, Ardha Matsyendrasana, Ustrasana.

Back problems:
Maha-mudra, Sirsasana and Sarvangasana, Paschimottasana, Dhanurasana, Salabhasana, Parivartanasana, Marichyasana, Malasana, Svanasana, Dandasana, Mandalasana.

High Blood Pressure:
Padmasana, Siddhasana, Halasana, Paschimottasana, Savasana.

Colitis:
Maha-mudra, Sirsasana and Sarvangasana, Virasana, Paschimottasana, Yoganidrasana, Salabhasana, Uttanasana.

Constipation:
Uttanasana, Paschimottasana, Sirsanana and Sarvangasana, Parivartanasana.

Cough:
Sirsasana and Sarvangasana, Yoganidrasana, Maha-mudra, Paschimottasana, Uttanasana, Kurmasana.

Stomach and Intestinal problems:
Uttanasana, Uddiyana, Paschimottasana, Utthita Trikonasana, Parivrtta Trikonasana, Parrsvakonasana, Marichyasana, Sirsasana and Sarvangasana, Yoganidrasana, Salabhasana, Dhanurasana, Bhujangasana, Mayurasana.

Siddhasana and Padmasana:
The most essential asanas for the performance of Meditation are Siddhasana and Padmasana. Both sitting postures allow a person to sit with a straight spine without straining. They also have a tendency to calm and relax a person.

Sirsasana and Sarvangasana:
These asanas are most essential for rejuvenation and to strengthen the brain, memory and concentration.